bre pettis / Flickr

Yes, we’ve all heard the anecdotes about changing light bulbs while taking a bath, babies putting their fingers in sockets or trying to toast bread that already has peanut butter and jam on it. However, this series of vintage warnings from an old German instruction manual, by way of Bre Pettis, will give you ever more dangerous situations to ponder.

So before you go fiddling with your car battery during a torrential downpour, of joke about being the office cowboy while using an extension cord as your lasso, be sure to read these 30 Ways to Shock Yourself.

(via FFFFOUND!)