Anyone Seen Our Car?

My local circuit training is competitive. Many of us are trying to out run, out sit-up, out anything each other. So heard a couple of the guys talking about how they had pushed each other on a run they did over the weekend.

I decide to interject with:

"Running is kind of easy, could run for miles and miles. How about we go for a 5 mile run with a tyre?"

Their reply was upon the lines of "Sounds interesting"

"You guys want to run this weekend?"

"Could do"

"Okay I'll prepare the tyres....."

...and so it was - training began with a 5 mile run.....

So joke time:

What do you say to 1 person running with a tyre?
Mad

What do you say to 2 people running with a tyre each?
Have you lost your moped?

What do you say to 3 people running with a tyre each?
You seem to have a tyre missing

What do you say to 4 people running with a tyre each?
Have you lost your car?