Well maybe it is not a vehicle, it is a shopping cart. But the dangers still exist. Any time we put our son into the seat of a shopping cart shopping becomes an even greater challenge. He likes to look around, which is fine. But he also likes to reach out and grab and touch just about everything on every shelf and down every aisle.
That is where the challenge begins. We want him to be happy so the shopping trip can be as quick and painless as possible. We will give him a soft, non-breakable item to hold and play with such as an empty food carton or stuffed animal. As long as he is entertained by those items we are in good shape. But every parent knows that a child's attention span is no longer than a blink or two of an eye. After they are bored with whatever toy or item they are holding they begin to reach for everything (and sometimes everyone) who is within arm's length. It is during these times when we must remain more vigilant and use "the eyes in the back of our heads" to prevent any real damage. Turn your head at the wrong time and the next noise you will hear will be cans crashing to the ground.
None of us want to pay for extra toys or items that are broken and of no value to us. The best solution is keep your child's hands and feet inside the vehicle...