>>22972004as you can see in the second panel, the man's POV shifts position, revealing there to be a faux-rock already doing its duty of clandestinely concealing a redundant means of ingress
this fact makes the additional rock superfluous, and its purchase folly
the woman foolishly purchased a polymer trinket unnecessarily... how typical of her kind!
though I suppose it proves the first rock is operating successfullyโshe suspects nothing, even though it's right there... mocking her, like the stupid bitch she is; she's literally being outsmarted by a plastic rock here, and if you can't see the humour in that, I simply don't know what to tell you