‘Tapping the glass’ is a poker term for commenting on another player’s play, especially when they feel the tactics are substandard. Players at the table who feel the comments are unnecessary will suggest the vocalizing player ‘not tap the glass.’ The analogy is that tapping the glass makes the fish in the tank aware of your presence and disrupts the environment.

How do you handle ‘glass tappers’ in your enterprise? What if the glass tapper is a donor or member who is commenting on your staff’s performance for excessive reasons? What if it is a peer organization vocalizing their thoughts about your organization’s perceived lack of impact? What are the conditions when tapping the glass is necessary and when it is disruptive to the culture of your cause?