My mom literally asked me to ask if anyone else in the world was dumb enough to do this and I honestly don't think so.
  She used my lens cleaner for my glasses on her contacts and messed up her eyes for now.
  I don't think it's going to cause real damage, just irritation but wow.
  Please answer so she can be satisfied.
  Is it stupid or not?
  I honestly can't think of anything more stupid than that. 
  Read more: Is Len cleaners used on contacts stupid?