The Trouble With Mr. Bean - S1-E8
Revealing mistake: Near the beginning, when Bean is asleep, we see him put his toe over the hose to prevent the water from spraying out - however, if you watch closely, the water flow stops moments before his toe comes into contact with the hose.
Chosen answer: I'm guessing it is because he bought a new car. At the end of the first Bean, he crashed the mini. You hear the crash and see his wheel bouncing down the road. Safe to assume it was a write-off.
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