Gaah that sound irritating! Few things are more vexing than being foiled in the pursuit of a guilty treat. You give in to the temptation, feeling a bit sheepish having done so and then the plan falls apart leaving you worse than empty-handed. Twice.
The last time I stared forlornly into a sink drain wondering how life could be so cruel was after I’d made a large pot of poultry stock. I’d set up my strainer and had just poured the pot contents through it. And there I stood with a strainer full of simmered-to-nothing vegetables, cartilage, skin, & bones and my drain plumbing full of disappeared stock.
I’d somehow forgotten the catch pot and had absentmindedly saved the solids, not the liquid! 
At least you avoided a multi-day exchange of increasingly arch notes with the innkeeper about the supply of soap in your room!