gasoline will work
down here in guatemala there was a recent situation where a bunch of green people (not sure what thier title was) came to a area of guatemala where there is alot of logging being done. whithout so much as a transalator they came down into the jungle with a helacopter and came at the local people to try and convince them of the errors of thier ways.
they had on man dressed as a giant rubber tree, and another man with a big rubber axe chopping him down, screeming out memorized one liners in spanish, and generally pissing the poeple off.
well after a little bit they had had anough of that and got a few cans of gasoline and planned on torching them before local authorities were able to get them out.(by the way public live burnings of troublemakers are pretty commenplace around here.