LOL! Exactly how BORED are you?
Lessee...me with a .38 snub-nose, against a guy with an AR-15? I assume he also has body armor. (Since we all know those crazy 'assault weapon' guys always wear body armor
)
I would not want to engage said lunatic with nothing more than a flimsy wooden table between us. Look for some more substantial cover, (ie, out-freakin-side) or try to do your best impersonation of a chameleon.....
If I absolutely HAD to engage him, summon all my ninja skills and shoot his weapon out of his hand, or go for the cool movie 'between the eyes' shot.