Change Teemo's shrooms

Just an idea I had after thinking about how no one really makes use of the ability to 'bounce' shrooms.

What if dropping a shroom ontop of another shroom made the first one explode? almost like zil bombs. This would give teemo a way of more actively using his shrooms and would open up a playstyle of conserving held shrooms so you can activate one as needed, instead of the is it up, guess I should go place it playstyle he has now.