I was just rewatching the end of a Study In Pink and in that scene with John, Sherlock and Mycroft, you can still clearly see Donovan and Lestrade in the background by the ambulance.
I swear at times during the conversation, Mycroft looks over John’s shoulder and a bit above his head.
Back towards where Lestrade is.
Oh yes. Been saying similar things for quite some time. 🙂