When I bumped into a second neutral convoy in a later patrol, I was shot at by one of the neutrals (I think a stray 37mm round hit him, like he should complain!!!)
I didn't shoot him, but he did shoot a british merchant (I was behind him at the time

) I was tempted to go and put him at the bottom, but didn't.
This rasies a question, if you take out a Neutrals gun's, but don't sink him, do you suffer any penalty???