"...and this part of the garden right here is mine..."
"Errr...Anouska? I think there might be somebun who disagrees with you there..."
"Right, human! Since you let these interlopers into MY garden, your punishment will be to pick up all their poos, not with a dustpan and brush but with this litter picker. One at a time. Until they are ALL gone. And if you do it again, next time there will be no picker to use either."