We have an amazing dentist here. She is one of the best...and I have been to many! I arrived to her office, told her my wiggly tooth woes and she began to assess the situation.
She very calmly told me, "Krystal, you just have a screw loose. Not a big problem, we can fix that." At that pronouncement, I lost it and just started to laugh. I then had to share that Americans use those words in a completely different way. We both laughed at me "having a screw loose."
Have any language bloopers you'd be willing to share?