WD40 or Nail Polish remover. Just be sure to wipe it out good before you do another load

You could try goof off. it works on everything. a little gose a long way. you would need to make sure you get it all off after you use it. Penny

Peanut Butter will disolve gum. Some kind of a chemical reaction, but I have used it since my kids were babies, and my baby is now 47.

Try a bit of lighter fluid on a cotton ball.

LOL...I would have the person who left the gum in their clothes remove it :)

Margie