But sure, as it happens number 12 would have been: Put wooden chopping boards in the dishwasher.

 

1) Order the fish in a restaurant on a Monday. It'll be three days old. 

2) Base-jumping. He just doesn't see the appeal.

3) Cheat on his wife. Sandra is his world. 

4) Open a new battlefront without adequately securing supply lines first. This one probably won't come up. But still, he'd never do it. Look at Napoleon. 

5) That. He'll do anything for love. But. 

Edit: For some reason, a lot of people seem to be complaining that none of these have anything to do with dishwashers. Why should they? Our dishwasher expert knows a lot about dishwashers, sure, but they're not his whole life. Get some perspective, people.