One bad thing about Finsbury Park is jumping on the Piccadilly line to go home after a skinfull and waking up in Heathrow,I'm sure you've done in your time.
Every friday night without fail I'd wake up in Cockfosters. Only ended up in Heathrow the once, after falling akip a second time just after Arnos Grove. Got a night bus from Heathrow to Trafalgar Square. ****ing thing went everywhere and took forever.