Big Mistake. Mr. Plumber Boy had never used the acid before.
This was my kitchen sink before - -
Then enters Mr. Plumber Boy - - and acid.
Now my kitchen (or at least a small portion of it) looks like this - -
Yes, Mr. Plumber Boy splashed acid and ruined my sink and countertop.
Enter Mr. Plumber Boy's boss and insurer . . . TO THE RESCUE.