A ham operator friend of mine lives in one of those subdivisions where the Homeowners Association is ruled by a bunch of anal Karens and Kens.
They didn’t just forbid the outdoor antennas, they forbid any ham radios at all.
My friend knew that he could (and did) put filters on his transmitter to keep it from interfearing with his neighbors. But the prohibition on any and all outdoor antenns was a bigger problem, as he wanted to work all ham bands and not just 2 meter, 440 and maybe 6 or 10 meters.
Then he got an idea. He got a G5RV antenna, with a matching tuner.
AND he got himself a commercial sized flag pole, used, when Holiday Inns was closing down their corporate HQ in Memphis. This was 25 or more years ago. Holiday Inns had a set of those really tall, commercial flag poles in front of their HQ.
He was able to buy one when they took the poles down. He placed it in his front yard, and then put a commercial sized American flag on it.
In the back yard, he already had a tall oak tree.
He took the G5RV and strung it from the flag pole, over his one story roof, and into that tall oak tree.
His neighbors, Ken and Karen HOA, never realized that wire was actually attached to a forbidden HF transmitter. In fact, they never actually noticed it at all. Nobody seemed to, although the way he strung it, he purposefully placed it in a way that would make it as least visible as possible.
Later, he ran a different cable from his police scanner inside the house, through buried conduit outside, till it reached the front yard flag pole. Then the cable ran up the flagpole, and connected to a discone antenna up top of the flag pole.
His neighbors did not realize that it was a discone antenna on top of that flag pole.
They just thought it was some kind of modern art type decoration or something.
He happily transmitted right under their noses for over two decades, until he became a silent key a year or two ago.