The problem of retaining a deckchair in a busy prime seaside location has now been solved with The Venus Flytrap Deckchair
It's a simple idea that consists of a standard deckchair being modified to take on some of the characteristics of a Venus Fly trap.
To sit on it you have to force it into the open position using a handcrank to overcome the powerful spring that otherwise keeps it closed up.
Once fully deployed, a two digit code of choice keeps the deckchair safely locked open but primed for when you want to take a short break away, perhaps to enjoy a dip in the sea or the pool.
On sitting down again, the deckhair will expect the code to be inserted once more within a few minutes. Failure to do so triggers a release of the spring and the chair snaps shut like a Venus fly trap, only now containing the pesky deckchair usurper.
Super fiendish version features rapid chemical digestion and disposal of miscreant.-- xenzag, Nov 08 2021 It's not real you know...-- xenzag, Nov 08 2021 It's hard to hide mechanical latches given close enough observation.
If I were a deckchair usurper, I would tend to avoid the one with the overly-heavy built frame, large springs, and complicated mechanism that looks like it's designed to spring closed.-- RayfordSteele, Nov 08 2021 //If I were a deckchair usurper, I would tend to avoid the one with the overly-heavy built frame // Thats a result.-- xenzag, Nov 08 2021 Precisely.-- RayfordSteele, Nov 08 2021 random, halfbakery