Supercharge the gravity gun while running up the stairs.
84, you run up the stairs to the 3rd floor and your gravity gun is fully charged, just need to wait and-
shoot yourself and fall on the floor crying
tell them the terrorist took off
28, You attempt to shoot yourself in the leg with the gravity gun, it misses and electrocutes the entire building! The power goes out.
Burn all your money
23, Sadly, all of your money is stored on a credit card, damn you fabric vibrator!