Frumpy Middle-aged Mom: Excuse me, get your towel off my lounge chair

So here’s a vexing problem I want you to solve for me: You’re vacationing at a resort that is costing you $1.2 trillion a day. You come out to the pool or beach. There are lots of empty lounge chairs, but they seem to have invisible occupants who have left towels on them, carefully draped and folded to convey ownership.
I’m not talking about when people throw their detritus on a chair, as in sunscreen, flip-flops and such, and then dive into the pool or walk over to the bar to