While we're on the subject

My MIL got to talking about showers tonight, and even though I said I knew I probably wouldn't have one, she insist that I "have to". She then started listing all the people that would want to come. The only thing is though, is that she named a few people that I really wouldn't want there and that honestly would probably find an invite weird. Her friend that I have met once probably doesn't want to come to my shower. And she named a couple of people that are (were) friends of DH's, but they're into drugs and steal stuff, and frankly I wouldn't want them there.
If she does end up throwing the shower, should I just let her invite whoever she wants or is it okay to gently veto a couple of the guest choices (although not sure how I'd go about it)?
Re: One more shower question?