What's wrong with him is being almost impossible to creep out, and a deep willingness to embrace his own fear and use it against other people.

So, same answer as other bats, just different presentation: Trauma.

This might be the first time Bruce has fully understood what Tim was saying and the implications of it.

"I'm picking you up and then going to make an attempt at saving you from your misunderstanding of that. For the record: High proof, low sugar, distilled booze is what you need for that."

He has already smelled alcohol, knows the leg is propped up and - well, he has ears.

The sugar content in any wine does nothing but feed bacteria.