Arguably one of the best traits of Doug Eiffel is that he is, in some horrible way, a predictable person. Whenever he commits to a decision, there is a high probability of it being either inane, ridiculous, or potentially outright suicidal.

The problem with Doug Eiffel, is that you never know which it's going to be until it happens. By which point it's too late to stop him.

Eiffel has a bottle of whiskey in hand when he knocks on Elias's door; he knows he's there, he asked Tiny Hera. "Trick or treat, Elias! It's ya boy Dig Dug Eiffel!"