Things that are impossible to say when drunk:-

Thanks, but I don't want to sleep with you.-

No thanks, no more booze for me.-

Sorry, but you're really not my type.-

Good evening officer, isn't it lovely out tonight?-

I'm not interested in fighting you.-

Oh, I just couldn't -

no one wants to hear me sing.-

Thank you, but I have no co-ordination so I won't try to dance.-

Where is the nearest toilet? I refuse to throw-up on the street.-

I have to work in the morning so I must be going home now.