We have all heard of the quickie lube that forgot to put the oil in--or replace the drain plug..

..
I've pulled some stupid stunts myself..

.like starting an engine with the oil filter off..."what's that whooshing noise ?--OH S***!..
My friend had a customer call him last week--he is mechanically inclined,but not too swift--tells my friend "I just got done putting a transmission in my car (older Chevelle,pretty nice one too)--I'm sure I did everything right,but it just wont go in gear,or move the car--like every gear is neutral !--you think I got a junk rebuilt transmission ?..
Friend asks "Well, did you make sure there's enough fluid in it?.."
"Um---fluid ?...you mean they dont come pre-filled with fluid?"..

..
"No, YOU have to buy it and put it in !..it holds about 10 quarts from empty"..
"OH!...I'll call you back!"..
Phone rings about an hour later--and--
"Hey,its moving now!--but is it normal for it to squeal like a pig at idle till it "wears in" ?.
"Nope!"..
"Oh hell--I'm just gonna drive it--maybe it'll go away"..
"Good Luck:!..
Good thing it came with a 90 day warranty..but no compensation for "labor and related parts"..like another 30 bucks worth of ATF!..