While we'd hate to think that buzz-killing chemicals would ruin the fun of Lead-Filled Barbie or Thomas the Toxic Tank Engine, I guess it's better to know, right?  Well, SF's Department of the Environment agrees with you.  And to sate the curiosity of the public, they are offering free toy testing on Thursday, January 22, 11am to 1pm, at their offices on 11 Grove Stree