How can I kill this cricket?

There's a cricket in my wall and I think it is just chilllin right behind the outlet. Before I call an exterminator, do you have any ideas how I can kill it? I was thinking like, some kind of breathable toxin. Or an electronic pest thingy? I thought about squirting windex into the socket, but I'm afraid liquid would start a fire. :-/ Maybe I just shouldn't mess with it. What do you think?