wow your friends are retarded
get ya keys back and make sure he aint make a copy of it
TRUST ME
a few years back a friend of mine made a copy of my house key (which i lost PLAY FIGHTING)
i didnt think nothing of it til
i came home one day and my computer was missing along with my playstation
then i find out homeboy moved to Phillie RIGHT AFTER.........

so be careful with ya house keys boi boi