im ok when them boucing off to infinity or until they hit terrain. but they can only explode once they stop moving and if they hit enemy champion than enemy can "pong" them back towards you and they become "his" mushrooms rather than yours.
^_^
Meh, if they were going to add another mechanic to Teemo I'd rather have something else. Shrooms travel slowly, infinite bounces would be etremely annoying for enemies at sieges, while not really adding anything to Teemo, because they travel so slowly anybody who failed to dodge shroom after 2nd bounce should immediately uninstall the game.
Maybe something like "bounced shrooms that hit enemy champion explode immediately" or something. He is fine though, no need for buffs now. But that would be fun mechanic.