i didn't call in sick for my first 2 years until this one:
"hey boss? wife's having a baby right now. can't make it today."
then, after said baby started co-mingling w/ other babies,
(call from hospital room)"hey boss? I'm sick. And I think I'm going to die. No really." i puked 37 times in two hours. yes i counted.
i did call in late one day because my oil filter exploded on the way to work.
this one isn't a call-in-sick excuse, but a cute story:
we were headed to a job one morning that required us to drive across a field that had been rained on heavily for the past week. the truck, completely loaded, bogged down in the mud about 50 yards from the jobsite. i had a new helper, and his reaction was, "what do we do now?" after explaining that we would call for a tow, then carry all the materials on to the jobsite, his reaction was, "you for real?" the job was a trim out. after spending about 20 minutes too long explaining how to install a receptacle, i left the helper alone for about 30 minutes. i went to check on him and noticed all the receptacles were installed w/ the ground pin up, not as i had wanted them. i was 110% sure that they were all wired backwards as well (they were). i said to the helper, " hey buddy, you put all those receps in upside-down." his reaction, ,"how can you tell?" i said "just by looking." his jaw dropped, and his next words were, "you're the smartest person i've ever met!"