ANTS!

This is completely random, but I am so freaked out. On my way to bed at the reasonable time of 4:00am, I have just discovered an army of ants,  at the bottom of my stairs invading my bag and nibbling on my sour patch kids:( I honestly think I am more upset about my un-salvageable kids, than the fear of invasion and unfortunate mass-murder of ants that occurred with my brothers football boots, the evidence of which will provide my mum with a great morning surprise.  Now of course, I currently cannot stop getting goose-bumps and itching because of my fear of them being on me, or the fear of the families of the murdered ants (thank you for that lovely story mother) seeking revenge and just having found one in my bra, (way to go ant!) my paranoid self will struggle to sleep. Now if you are thinking why have I left them, to be honest I really don't know what to do, I am pretty sure they can't kill me because a) I live in the UK and don't think any insect can kill us and b) ants can't climb stairs. I would also like to add this does occur during the summer sometimes in our house and yes we should probably do something.  Does anybody else get this horrible feeling with creepy crawlies?