A hand grenade salad arrives at his table for one. It is not what he ordered. He is worried that the hand grenade salad might give him indigestion, or a bad case of exploding internal organs, but he gives it a go anyway.
Hand grenades are smaller than you might think, especially this one, which is a Fabergé hand grenade, but getting them down the oesophagus is still problematical; however, it presents no difficulty to a man who used to swallow boulders in the circus.
Passing a Fabergé hand grenade stool is uncomfortable, and the process activates its exploding mechanism. This is not fatal for the man, though, as he has a bomb-proof arse.