Toothbrush Buffet

So I talked with my husband about my brush being used. I've done so before but he just brushed it off. However this time he tells me that recently he's been finding his toothbrush in odd places, places that he remembers not setting it down at. So he and I agreed that it was probably not the women in the house, which narrows my suspect list down to two. I hadn't really considered the women anyway as I couldn't see them being the type. However I don't know the guys all that well which just raises my suspicion more. I had told my husband that it's not a buffet, you can't just pick and choose which toothbrush you want to use for the night. I mean, who thinks like that? That's kinda gross. In any case I'm still sticking to my new toothbrush which I've placed in my bedroom and I am still continuing to salt, vinegar and sugar up my old toothbrush head. Maybe I'll start in on the baking soda. That stuff is really gross tasting.