Mischievously funny Martinez has a top-notch set, much of it about the cerebral palsy from which she suffers. The act does provide a moral dilemma for the liberal punter, though, as you do find yourself laughing at a disability. Is it OK to laugh if it's self-deprecating? The PC debate aside, this is a brilliant set - although she should be wary of resting on her laurels and start developing new material on wider topics.