Possibly the greatest glitch of all time. (Bug report)

Reproduce:
1. Equip any weapon (Attachments not necessary)
2. Press and hold the Grenade button (G)
3. While holding, switch back to your primary weapon (Scroll Up)
4. Release G
5. Behold.
Notice: This does not actually fire the direction in a straight-forward direction, it instead fires it below your character with no clump/spread. It is possible that it can be abused, but highly unlikely. This is still something to point out to the developers.
*(Will be presented in a bug report to StyLiS, enjoy it while you can.)
**(Recorded on a Pepperoni Pizza)