"Naaw," the guy answered, "I'm in a hurry!  You didn't really need that stuff, it just makes bubbles.  It's a pretty effect but it doesn't do anything."
"That's the oxidizer," I answered.  "it's what puts oxygen in the water so the fish can breathe.  Without it they'll all die.  You've gotta put it in!"
"I haven't got time!"  the guy answered.
Daniel came over all in a huff.  "Gerald," he remarked, "this man's an expert.  He knows what he's doing.  he's been trained for this work."
"He's an idiot!"  I answered, and went back into the kitchen.
They filled the tank, put the fish in it, and the next morning they were all belly up.  The cook, eager, always to irritate Daniel, explained to the boss how I had warned him the guy didn't know what he was doing and Daniel wouldn't listen.
"You damned fool!" the boss screamed, "When will you understand just because somebody hasn't gone to college they're not stupid?"
"Well, I listen to the experts!"  Daniel snapped.
"Yeah!"  the boss answered.  "I just talked to that guy's father on the phone.  They spent thousands of dollars getting him an education and he fouls up job after job, so he can get done work and go get drunk.  That's your EXPERT!"
The tank was fixed but Daniel made it quite clear he despised me.
Within a week we had another incident.  A compressor on top of one of the refrigerators began to vibrate loudly and I warned the cook it should be turned off.  He went to Daniel twice.
"The service guy's coming," Daniel answered, "don't worry about it.  It'll last 'til he gets here."
A few minutes later the compressor blew apart.  Ten minutes later the service man came through the door.  As he examined the remains he shook his head.
"Stuck valve," he commented.  "Would've cost you $25!  Now you're going to need a whole new compressor.  It's too bad it hadn't been turned off 'til I could have got here!"
I didn't hear what the boss told Daniel but from the reports he again expressed his outrage at Daniel's attitudes.
A couple of weeks later Daniel's and my time together ended.  I was working a double because one of his buddies hadn't shown up, and we were the last ones in the restaurant.  Daniel came out and snapped, "Just push that stuff through and stack it.  I want to get out of here.  Do it the way the night crew does it."
"I don't do it that way," I answered. "That's not the way the boss wants it done."
"There's a basketball game tonight," Daniel answered.  I at least want to see the end of it.  Get this stuff done NOW!"
"Go ahead!"  I told him.  "Just make sure all the doors are locked.  I'll finish up and make sure everything's secure when I leave.  I do it all the time, no problem."
"I'm always the last one out of here," Daniel snapped. "Nobody stays after me.  Now push that stuff through, or get out!  I won't take your prima donna attitude.  I'll fire your ass!"
"I do the work the way the boss wants it done!"  I answered.
"Get out!"  Daniel roared, "Get out!  You're fired, you  don't talk back to me, you don't argue with me.   Who in the hell do you think you are?"
I punched out, grabbed my coat, and left.  The next morning the boss called.  "What in the hell happened last night?"  he asked, "I found a note on the door from Daniel saying  you were disrespectful and he fired you."
I explained what had happened.
"Don't worry about it,"  the boss moaned.  "Get in here.  Note on your time card when you would have normally left, and I'll pay you for the lost hours."
"It's no problem," I told him, "it would have only been an hour or so."
That afternoon when Daniel walked through the door he went through the roof screaming at me to get out of the kitchen.  What in the hell was I doing there?  The boss came out and ordered him into his office.  A few minutes later Daniel came out, grabbed an empty box and began emptying his desk.
"When I fire somebody," he muttered, "they STAY fired, NOBODY talks back to me.  If he wants this f ****n' prima donna he'll have him.  I've had enough of this!"
He stormed out the back door.  In a couple of weeks he had another job and two of his night buddies went to work there.  We quickly replaced them.  A nice lady took over Daniel's job, and we got along just fine.  Nobody missed Daniel and his buddies at all.  As a matter of fact we were very glad they'd decided to go elsewhere....VERY glad!