Why bother having slots....?
If SIA turns up an hour late, AA an hour early, Delta an hour early, Virgin 45 mins late etc etc and they all hit happen to the apron at the same time what happens then...?
...anyway went to my local Spar Sat morning for some milk, outrageous, had to wait 20 mins for them to open I'm now seeking counselling, rest assured I shall be writing to my MP !