Omg realised I tried to pick one of ddogs nipples off yesterday thinking it was a scab!!

Ddog 3 and ddog 4 have been enjoying way too much rough and tumble lately... Saw a tooth graze on ddog 4 and a round scab.. Had a quick scrape to check if it needed antiseptic.
Shouted of dh and he found a load more!!
How bloody stupid am I??
Tbf her markings make them look on her side not on her underneath..