Terrific Sneako

To Disappear without informing anyone.
To Avoid saying no to going out and then just going home straight away without informing anyone.

You're out at a club, You've brought your friend with you... After speaking with some other friends you turn around and your friend is gone. You call, no answer.. you seek, can't find... The next day you hear from your friend that he or she has done a terrific sneako!