"People coming back, especially high performers, feel this pressure to walk back in the door and expect the same level of performance, " Ms. Fishman Cohen says.
UKIP's local election manifesto, concentrates on its flagship policy of ending "open door" immigration and putting pressure on the government not to lift restrictions on workers from Bulgaria and Romania on 1 January, which proved a successful formula in Eastleigh.
As I recall Saab (and some other car makers) give more information than others on their door-frame labels about varying tire pressure based on driving conditions.
If the regulating valves fail or if the cabin structure is breached (by a failure of a door or window for example) then the pressure in the cabin would suddenly drop to match the outside air pressure.
The last thing you want when you're planning to visit the loo, and one in a novel setting with different skill levels, is the pressure of knowing people are waiting on the other side of the door, wanting to know how it went.