Title: Pipe. Sentence 1: I wanted to plant a new cherry tree in my backyard. Sentence 2: Rather than pay for someone to do the digging, I dug the hole myself. Sentence 3: As I dug deeper, I suddenly felt my shovel hit a hard object. Sentence 4: I thought it was a rock, but it turned out to be a pipe.
I had burst the pipe and ended up with a costly repair bill.