Paddy was driving home from the pub, he saw a tree in the road and swerved to avoid it, after a short distance he saw another tree, and swerved again, he did this several times and a police officer spotted it, so pulled him over. The officer asked if he was drunk, to which Paddy replied "i keep having to swerve from the trees in the road", the officer said "for fucks sake Paddy, thats your airfreshener!"