I always knew that my wife wasn't totally normal
(I mean, she had chosen me...), but not to this point. She had a bit of experience when I encountered her, but mostly deceiving and bought a face massager precisely because of this. And it was in the early 90's, so before sex toys actually became something acceptable
(at least here).
Know that it would have been as embarrassing for the person who find it. Few years ago I was at my daughter home and, passing in front on her bedroom I saw her cat knocking off something. Being a nice dad, I picked it up and... well, my daughter own a bottle of sex toy cleaning lotion...