Why do we call this a church key, when it never opened the door to a church?

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Do you have one of these? Do you ever use it if you do? This was a kitchen tool for as long as I can remember. If you drank beer that came in a can, it didn't have the pop-a-top thingy on it then, you had to open it with this opener, that everyone always referred to as a ''church key.'' It hooks on the side of cans, and then you can move it upward and push down on it, to open the can. The only thing I really use it for is to open home-canned foods, and the occasional can of evaporated milk, to pour out the needed amount as those cans don't have a lip for a can opener to grip. A person can gently lift the cap of a canning jar and break the seal on the jar, to open it and get to the contents. I am not a beer drinker, but if I was, I wouldn't need this in today's world of the pop-a-tops. The reason it's called a church key has several explanations. The one that seems to be most popular is that it rather resembled a church key, back in the day. Invented in 1892, patented in 1900, this little chunk of metal has been in many kitchens for years and years. Some think it's because monks often brewed beer in secret, and kept it locked up. Whatever the reason, it's been a ''church key'' for like 133 years? Do you have one of these in your kitchen, and if so, do you use it? Picture from a Pinterest post and marked Ebay as well.