Yep. That situation was basically just 'work' when I did it in the early 2000s. In fact we'd comment if we got out of a building without being roped into additional tasks it was so unusual. It formed a large part of our income.
To this day it still happens, I walk into IT dept to talk about one thing an hour later I've have 6 different conversations about other tasks and issues. It's something I rely on to get the true lay of the land and not the Reader's Digest version of events form managers.