I have made several homebrew antennas and have an antenna farm in my attic. But I would say the stupidest place I put one was right next to me. I didn't have a base antenna years ago and wanted to do some dxin' and local talk. So I got on the internet and found the plans for a "coax" antenna. Really simple. 102" of coax. Divide the inner core from the shield up to about 9" from the connector that was left on one end.Spread it out in the air and my first contact was a guy in Italy !. But it was stupid as I learned later when reading about stray RF to have it right next to me as I was talking.