My Grammar and I (Or Should That Be 'Me'?): Old-School Ways to Sharpen Your English

A
TTRIBUTED TO
W
INSTON
C
HURCHILL
Ha-ha
Suffering from impotence, a man visits several doctors asking for help, all
to no avail. Finally, out of desperation, he visits a witchdoctor. The
witchdoctor gives him a potion that can only be used once a year and tells
him to take it before he is ready to be intimate. Then, when the time is right
he should say ‘one, two, three’ and his impotence will be cured for as long
as he likes.
The man asks, ‘How do I make the potion stop working? ’
‘Oh, that’s easy,’ the doctor replies, ‘You just say, “one, two, three, four.”’
That evening before he enters the house, the man drinks the potion. He
surprises his wife by immediately leading her to the bedroom. Things are
going well and the man whispers, ‘one, two, three’.
His wife gives him a funny look and asks, ‘What’d you say “one, two,
three” for?’
And that is why you never end a sentence with a preposition!