You see this in a building, who do you call, answer in the comments...no cheating you have to pick one and for this assume all are real options. 😂
A. A Plumber
B. An Electrician
C. Ghost Buste...
A. Isit a laser plumbers tool maybe laser soldering, if there is just a thing invented yet 🤔 I don't know but there should be ,why not 🚫