Yep I think you're right, sometimes it is better to withhold consciously then to give. I think the key here is your level of consciousness/awareness around the transaction. In that way, if you're giving reflexively then maybe it's better to stop and think and then decide. I don't think it's a case of it being your place or not to decide about 'giving out a lesson' - but rather that a person who's trying to live a wisdom filled life will necessarily attempt to apply a process of discernment to whatever decisions they're making.