[throwaway999888]

It's unacceptable because of the manager-subordinate relation.

And you can't put the burden on women to actively signal that they are not sexually interested in a professional setting. That's at best a large distraction for them, and at worst very draining and emotionally damaging.

[isnullorempty]

I meant if someone show interest not all the time, men can be dumb and are unable to detect subtle hints.

[thedz]

Are you actually using "I'm stupid and oblivious" as an excuse?