premise: My parents visited on Weds , Dad in the sporty BMW , Mum by train . We survived a day together , driving around in the beamer , and then came the point - driving down the Woodstock Road , and Dad sais , what 's the best way to your house , and I say this way is OK , but the Banbury Road would be quicker , but we just past the last turn . So he does a U turn , there not being any oncoming traffic - apart from a cyclist . We do n't kill the cyclist by a good yard or two . I am dying of embarrassment in the front seat , saying , " If you want to kill a cyclist , could you pick on one that is not MY BOSS . Why did the parents visit on Weds ?
hypothesis: Dad wanted to do a U turn .