I must not check email.
Email is the productivity-killer.
Email is the little-disruption that brings total loss of focus.
I will ignore my email.
I will permit the notification icon to pass over me and through me.
And when it has gone past I will turn the scanning eye to see it at a predetermined time.
Where the email has gone there will be nothing so urgent.
Only I will remain
When I ask the developers if they tested it yet
When I fail over to the DR site for the first time
When they try to make peace between Developers and DBA’s. (HT @ShadowGK)