Poor Zac Efron. During a routine drug-run an Escalade escapade in downtown L.A. late Saturday night, the 26-year-old heartthrob got in a scuffle with some hobos that left his gorgeous mug a little less gorgeous.

Efron and his bodyguard allegedly ran out of gas and while waiting for a tow truck to arrive, Efron threw a bottle out of the car window. That bottle landed near a group of "transients", who thought Zac was trying to start shit with them. According to TMZ, that's when a "full-blown melee" broke out:

Zac said the transients confronted him and the bodyguard because they believed the pair hurled the bottle at them. Zac says 2 of the transients attacked the bodyguard and when Zac got out of the car to help, he got cold cocked in the mouth. Zac said, "It was the hardest I've ever been hit in my life."

The accident-prone Efron broke his jaw last November, as one often does after slipping in a puddle of water. Meanwhile, on a completely unrelated note, he also spent two stints in rehab last year for cocaine abuse. TMZ says cops are on high alert for drug deals in the area where the melee occurred, and one eyewitness claims Zac was "obviously intoxicated."

Now before we all start casting aspersions about Zac Efron being the new Lindsay Lohan (which is ridiculous since the old Lindsay is still alive and swinging jackhammers), is it so far-fetched to think he was just doing research for the new High School Musical?

They're just really emphasizing the "high" this time around.