I have no idea why anyone would skip a shower if they had one available (assuming they had the 5 minutes of free time). This is my first job with out a shower since starting to commute, and the unscented babywipes solution is so much worse than just having a shower.
Maybe it's only a 1-2 mile commute, so they're not that sweaty/gross?
__________________
In the words of Einstein
"And now I think I'll take a bath"