uk stupidity when it comes to protecting ecosystem :

oh look its the green parrot, the grey squirrel, the signal crayfish, and now the fucking racoon, when are we going to ban all these people from importing foreign pets because all this crap is inevitable.

alternative solution tag every foreign animal and bred version electronically, and dna profile these animals, so we can fine the owner for environmental pollution, when they drop the fuckers by the roadside.