Its the ‘Own a musket for home defense‘ copypasta but changed to hairdryer.
I own a hairdryer for home defense, just as Ben Franklin intended. Four ruffians break into my house, "What the devil?" as I grab my insulated gloves and 120V extension cord. Swirly the first bad boy in the toilet with it, he's dead on the spot. Swing it wet at the second man, miss him entirely and electrocute the neighbor's dog. I have to resort to the electrified box fan water cannon mounted at the top of the stairs. "Tally ho, lads!" The strike fries two men in the splash, shorts out the house and sets off car alarms. Charge the last terrified rapscallion with a sharpened electric toothbrush, he bleeds out waiting for the police to arrive because a million shiv wounds are impossible to stitch up. Just like Ben Franklin intended.