'Killing two birds with one stone'. Example 1.

Crazily busy this morning, and I had a meeting to go to.
I was desperate for the loo, but had to print off the work.
The cab was waiting outside for me and the fucking printer broke.
Arse.
The only other printer is on the top floor which I'm too lazy
to climb the billions of stairs to.
And I still wanted the loo. Seriously now.

Solution!
I took the lift. And had a shit in it.
TA DAAAAAA!
Ladeeez and gentleman, the classic 'killing two birds with one stone'
demonstrated for your entertainment and delectation.
I thang you. You may stop applauding now.

I was only joking about having a shit in the lift of course.
Jeez what do you take me for?
It was only a piss.