Your joke reminds me of an actual incident between myself and Mr Plod when I was younger. I had competed in a bike race earlier in the day, and had a malfunction whilst sprinting resulting in me teraing a fairly substantial amount of muscle in my leg. So, that's all well and good, and I was meeting my mates at the local leagues club for a game of pool before we headed off to one of their houses for some films. So with me driving past the bottle store on the way there I took everybodies orders for drink and stuck them all in a box and put said box into my passenger seat.
So off to the club, played pool, didn't drink, got in my car to drive home. Plodsky follows us out, then pulls both myself and my mate over.
Cop - "Had anything to drink tonight?"
Me - "No"
Cop - "I doubt that, you've been drinking a bit given there's a box of bottles in your car."
Me - "They're all sealed officer"
Cop - "You'll have to wait to be breathalised, my partner is just using it on your friend. Can you step out of the car please?"
Me - "I'd rather not" (Having a very sore, and rapidly cooling with the night, leg)
Cop - "Why not smart-arse? Been drinking too much?"
Me - "No I..."
Cop - "I don't want to bloody hear it, get OUT."
So out I get, shaking on my sore leg, unable to stand properly.
Cop - "get your wallet, you're done mate..."
I turn to get my wallet and my leg spasms a bit and I fall into my car and end up sprawled over the bottles. And knowing how it looked I have let out a bit of a giggle.
The cop goes nuts, swearing, laughing, telling me I'll love my night in lock up etc etc.
Over comes his partner. "What's wrong here?" So I explain the story... blow 0.00 and am apologized to before the senior member reminds the junior that sometimes a few questions can straighten out a situation. Rather amusing.