|Maybe it's already happening? I found this one in Kings Cross.|
A Drug Enforcement Agency (DEA) agent seriously told a Utah senate committee that legalising medical marijuana would lead to an epidemic of stoned rabbits. Ignoring of course that legal growers would simply fence off their crops from animals.
Agent Matt Fairbanks also brought up the spectre of illegal pot crops doing environmental damage, which has some truth to it. All the more reason to legalise it, you dolt!