most stress i have had was when this child jumped into the deep end and began sucking down water, so i went in after them since i was on duty.  when i got them to the deck they were knocked out so i went to work on them and finally after about 30 secs they came back and were fine after the ambulance checked them out and let them leave.

Having a flat tire on the way to a tournament, that will stress you out every time.

Every time the wife has an major epileptic seizure. Affects the whole family.