Although my husband had a catheter, he was only momentarily invested in removing it himself. For the past few days, I have been thinking about your father-in-law and possible strategies to improve the situation. Although my dear husband passed away last, I am now firmly in the land of incontinence products and know a thing or two about the problem. Ask his doctor if a catheter is necessary. Could disposable incontinent pants solve the problem? Adding incontinent pads, along with the pants, boosts protection from accidents. The two companies that I have dealt with that deliver their product to my door are Because and Liv. In addition, Amazon has pants made of waterproof material that can be worn over the disposable incontinent pants. I hope something helps. GloRo