Red Alert -- Lindsay Doin' Her Time

1/8/2008 1:25 PM PST BY TMZ STAFF
She's no stranger to mackin' on helping out her fellow man, so Lindsay Lohan did what looked like charity work but was actually a jail-alternative.

Lohan was at a local Red Cross putting in community service time for her DUI conviction. When you have a checkered past, is it really a good idea to wear plaid?