You're not careless, or at least you've never given any indication that you are.
GP: You weren't dressed warmly enough the last time I saw you.
Mojo: Well, as you get to know me better you will discover that I'm the kind of woman who is always losing her mittens. Will you help me find my mittens?
GP: (rather crossly) No, I am not going to help you find your mittens. You will just have to pin your mittens to your coat.
Mojo: (sigh)
Lol. That's not careless. That's absent-minded. There is a difference.
