Quote from MasterGambler:
Some people are just truly unwilling to gamble on things... All risk taking is gambling, because all risks have rewards. The risk/reward for the vacuuming and disinfecting your hotel room vs not goes like this...
Risk: Catching some strange disease or infection... Odds... Less than 0.00001%.
Reward for the Gamble: Getting to sit down and relax and watch some TV instead of cleaning for an hour.
I think some people have risk/reward ratios for gambles skewed in their head...