What makes a good pitch?  (i.e., where should/shouldn't I try to busk?)

Good places to busk:

In the middle of the street before a parade.

Bad places to busk:

In the middle of the street any other time.

Bad situations to try and busk in.

When 20 gang members rush the show,

overwhelming the performer in order to steal something,

Or in a town with strong enforcement of anti-panhandling laws,

like Hollywood.