If you want to go and sit in college and cry, ok. But if you're about to leave the house and you're in a position wherein you could start crying at any point during the day,
stay at home! And I know the argument:
"People are allowed to be upset, you unsympathetic wanker". I don't want to see you ruining everyone else's day with your moping about. At least find somewhere with fewer people than the Street for shit's sake! If something came up (and it has recently for me) whilst in public, don't inflict it on everyone else.
Go away! Have some sort of etiquette. It's there for a reason you moping twat. I've been through shit too, so SHUT THE FUCK UP!