Scene: at the vet

Vet tech provides a couple of rabies tags and leaves

Me: *picks them up to look at them*

Wife: *explains to me what they are*

M: they remind me of guitar picks

W: metal guitar picks?

M: why metal? Couldn't they be used for country or something?

About three seconds later her eyes shut as she understands the joke and the pain washes over her. She didn't want to dignify me with a laugh but let a smile seep through.