I move things in my Pick-Up Truck as a side business and need a disclaimer...?

[ditchcrikets]

I move items that people buy at the store or on CList as a side business and haven't ever had any problems except recently someone tried to blame my moving as the reason why the used exercise equipment they purchased didn't work after delivery. (They where there at Pick-Up & Delivery). They saw I never dropped it but said they told me to watch the cords they where fragile.....Anyways, I want to know if there is some type of semi-legal verbiage that I can put on a receipt that the customer would sign BEFORE I move there items stating that basically It's a "Move at Your Own Risk" type of move...I will take care when handling there items but I'm not responsible for any damage that happens before, during or after pick up/delivery. I know I should have movers Insurance but that really COSTS and my prices would sky rocket. People have to know you get what you pay for, I'm simply "There Friend with a Truck" Any body with any HELPFUL ideas PLZZZZZZZZZZZ Respond ASAP!

Thank you