Y-shield paint grounding help

[Guest guest]

Hello everyone, I just finished painting my room with y-shield paint, after we

were done painting I tested it with my body voltage meter and and I found that

its grounded, I cant find where its grounded to, Im positive its not touching

any metal from the outlets, light,smoke detector, and air duct, I spent 3 hours

making sure of this. Where else could it be grounded too?

Cristian