Went for a stroll in the woods with MIL and DD, MIL pushing the pushchair.
I noticed that my boot was unlaced and stopped to sort it out. MIL didn't break her stride and vanished off round the corner. I had to call out to her to find them! I know she wants time alone with DD but seemed... odd to me. Quite rude. I'd always wait for the other person.
Obviously I didn't make a fuss about it, but found it slightly annoying. AIBU?