Jonathan Ganz wrote:

Bozo?

No, haven't called him a bozo. That term is just a bit too warm and
fuzzy. It implies a certain charm and harmlessness that just doesn't
apply to someone as nasty and pernicious as Nil.

Nil is more like an aggressive panhandler. It probably stems from a
lifetime of underachievement and frustration. Having a broken boom on
his little plastic trailer boat probably hasn't made things any easier
for him.

Rick