Was talking with a family member over the holiday who works for a water well company. He related how he frequently uses a corded hammer drill in a flooded well pit with water up to his knees. He also has used a corded sawzall to cut open old water tanks and plumbing where the water flows out all over the tool.
He says that whenever these tools are powered from a GFI protected receptacle the GFI trips. (Gee, what a surprise!)
The clincher is that whenever this happens his boss tells him to plug the extension cord into a regular receptacle. Those GFI's are a PITA.
I just shook my head and asked if his company had a life insurance policy on him with them named as the beneficiary.