The sarcasm world on Instagram: "Bathroom pranks are a classic category of mischievous humor that combine surprise, timing, and a little bit of gross-out factor, often designed to catch friends, family, or roommates completely off guard in one of the most private spaces of the house; these pranks can range from harmless jokes like placing cling film over a toilet seat, switching soap with clear glue, or putting food coloring in the toilet water, to slightly more elaborate setups like fake spider