How does throwing work? Is this a glitch?

[DonkeyAssHat45 4]

This is something that really pisses me off. Everyone says throwing cans will distract zombies, But all it does as argo them on me. Im laying prone, I have a can equipped, im laying prone, the zombies can see me, I left click, my guy does a throwing animation but does not throw the bottle.

Then MY GUY STANDS UP without me pressing anything and throws a bottle in whatever direction im currently aimed at. Argoing all near by zombies.

WTF.

[Disgraced 1123]

Yeah this is weird and happens with your pistol in hand.

Switch to your primary weapon and you won't get up to throw or use your gear menu.