when u ring someone up to buy a car..(we are selling) and say yes il definatly be there in an hour or so.. keep it for me.. u get 4 calls in that 2 hrs and u say sorry ive promiced it to someone.. ring bk in 2 hrs to see if its still ehre.. one of those people ring bk as the fker didnt turn up.. and u say to the person sure come up because im guessing the other person isnt comming and they dont turn up either!