I say do what you want as long as:

1) You clean it up
2) You can handle it (it shouldn't make you more likely to fight or act rude to someone)
3) You don't act like a beligerant a$$ in front of my (or anyone elses) wife or kids who may be fishing with me (see number 2)
4) You don't compromise anyone's safety - includeing yours (i'd prefer to not have to do a rescue attempt while I'm out enjoying the river)

So if it increases your enjoyment and does not negatively impact anyone elses - go for it!

-Chad