DH puts dummy in his mouth

[PinkyPudding]

Last month my DH decided that we needed to introduce a dummy to our 6 month old son. DS had been sucking his thumb and I thought that was fine and better than a dummy but I worry about being a "gatekeeper" mom so I didn't put up much resistance to the dummy. However I noticed immediately that DH kept putting the dummy in his mouth first before giving it to DS. Even when the dummy falls out of DS's mouth and lands on the bed or couch, DH puts it in his mouth first then gives it to DS.
This drives me absolutely crazy! I really hate it. I don't understand why he does that. I asked him to stop because it's gross and he said that it's a "normal thing" in this country (I'm American and my DH is British and we live in the UK) and basically told me to get over it.
AIBU? Is this a British parenting thing that I just don't understand?

Just run under hot tap or baby wipe will do?
I think a germy mouth is better than all the chemicals in a baby wipe

Yep, fecal transfer does work, they use it to treat c.diff. Michael Mosely's 'clever guts diet' is a very accessible and interesting read on gut health.

Anyway, I never bothered with a dummy for dd but friends who used them tended to rinse under a tap or use a wipe to clean them. If dd had had one I'd probably rinse it but that's mainly cos we have a very furry cat and the hair gets everywhere and I don't fancy a mouthful of cat hair.

They put my poo up your bum??????????