My neighbor needed his car jumped and he knew (from the last time) that I had a Diehard wheeled charger, so he asked to borrow it. I said, "I'll do it for you". Mind you, over the winter time, he was kind enough to snow blow my property before I got home from work and could do it with mine. So, I felt that jumping his car the 1st time was the least I could do. So, when he asked again, I said, "Sure, I'll do it for you". After we got the car started, he said, "Here, take this. I'm sure you could use it". It was a nice, long 50' (I think) rubber heavy duty contractor's electrical cord. I said, "I'm sure you need this???", He said, "Nah, I'll never use two...take one...and thanks for being a champ and helping me out...saved me time and money".
So, in that case, the tool was "borrowed", but in the end, it worked out.