How much weight can a shopping cart hold?

I found a metal shopping cart at the end of my street My friends and I want to ride around in it (and act like complete idoits) but we don't know how much weight one can take. The bottom seems to be a bit rusty but it appears to be quite stearty. What is the maxumin weight a shopping cart can hold? Could it hold two people?|||all i can say is make sure you're paid up on your life insurance before you start riding that thing out in the street.|||try it and tell us...by the way yall might wanna stay outta traffic