There's a grab bar in front of the toilet in the shop, and pretty much like that.
Apparently no one had a good ear or stud finder.
The wall is actual 2x4s off the mill too, so even easier than 1.5x3.5s.
Many years ago my wife's grandmother tried to unplug a 220v air conditioner. She lacked the strength to pull the plug, so she wedged the point of her sewing scissors between plug and outlet (plastic handles probably saved her) and had an exciting moment. The scissors got welded together.