Ivan and Mikhail are seriously possessive of each other (specifically Ivan for that matter) so for stranger deer, any nuzzling, spelling, or sitting too close to either usually responds with the other getting jealous and throwing a fit. I find it hilariously adorable in my opinion lD
also, a stag or two have fought with Ivan over Misha (Misha has "doe"/noh antlers) who seem to think Misha is a doe, in any case, this is what it ends up looking like
random deer is random <3