The Plan That Cannot Fail
Timmy just marched into my room and gave me this.

The masterplan involves our little sister (aged 5) going around the back of the evil castle on a skateboard, with a ghetto blaster pumping out Justin Bieber songs as a distraction. While this is going on, Timmy goes round the front of the castle with a ladder attached to a pogo stick and retrieves Clyde from the top of the tower.
I pointed out to Timmy that this plan entirely hinges on Clyde actually being kept in an evil castle of this exact design. He replied ‘Well yes, obviously,’ as if I were a complete idiot. ‘I’m making sure we have all our bases covered.’
‘What happens to our sister when you’re retrieved Clyde?’ I asked.
‘Once I’m clear with Clyde, you rescue her with a sword,’ replied Timmy. ‘That’s part of the plan, but I ran out of room on the paper.’
‘I don’t have a sword,’ I said.
‘I’ll make you one,’ said Timmy. ‘Now I have to go. The lightbulb needs further study.’
And off he went.