Funny that you mention that. I just put new tires (5) on son#2's truck this evening. He had a blow out and had to put the spare on. It was the original spare from the GM factory... in 1997. Seems it was a little brittle looking, so I had a new spare installed.

I check air pressure every Sunday on all of the vehicles including spare tires. This results from a 12 mile walk home in a cold rain as a teenager due to a flat spare.

My "Favorite" thing to find is an empty/defective fire extinguisher. I have had that happen twice. Both were in an employees' company truck. I allowed 2 hours each Friday at the end of the day for what I called PMCS from my army days. Preventative Maintenance Checks and Services, meant make sure EVERYTHING was ready in the vehicle. Both fella's had to find new work really fast.