I had a chair that fits in the tub, so I could sit and shower. One day it tipped over and my arms were caught between the legs. Luckily my wife was home and called 911 and the fire department came and pulled me out. After that I got a chair that overlapped the edge of the tub and purchased a 911 button. It only calls 911, no friends or neighbors and there is no monthly fee. When I shower, I tie it to a string attached to the chair leg and leave it on the mat on the bathroom floor. It is moisture resistant, but not water proof.
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