Originally Posted by
dontknownuthin
Other than coming in and out of your child's life, are there other ways he's a bad influence on your son? For example, does he drink or do drugs, act abusively, etc?
If these are the issues, you might want to consider amending his visitation so that it has to be supervised or, if he is a chronic no show, making it less frequent so that you can at least reduce the disappointments in your child's life. And if you have the child more, you might be able to ask for higher child support.
If he's not paying reliably, also make sure that he is paying through the state instead of paying you directly. Through this arrangement, his wages are garnished and you will more reliably get paid. This is not very effective if he is self-employed, paid cash or works for tips but if he gets a regular paycheck, it's wonderfully helpful.
I agree with everything Judy said, as well.
Good luck.