You see landing at your base with about 2 minutes of fuel is extremely rare, you would normally have more fuel or would run out of fuel before that, loosing an engine is also something that does not happen everyday.
That's where you are wrong, very wrong. In the groups that flew combat in Europe, especially early on, it was not at all uncommon to return from a mission, even with no damage, with barely enough fuel to "ride the pattern" for very long. For the facts on that, I'd suggest you read some of what Warren Bodie wrote, as well as stuff from Capt. Stan Richardson, Capt. Art Heiden, reports from Tony Levier's visits to bases in England, etc. If you don't know where to find that, ask Widewing, he does.