Spies do judge books by their covers. Michael tells the viewers this as he explains why it's difficult to forge a document. The clip is courtesy of the episode "Blind Spot."
Michael deals with Fiona and his mother in this scene from the episode "Blind Spot." The latter isn't exactly pleased with how her son has handled Jesse.

Burn Notice Season 4 Episode 11 Quotes

Sam: I think it's time for some Chuck Finley action
Fiona: His name is Charles, you need a new cover id.
Sam: Sorry Fi, I don't think so, Chuck Finley is forever.

Fiona: So you and Jesse are poking Barrett with a stick. Why does the term "sitting ducks" come to mind?
Michael: Jesse and I are pretty well armed ducks.