Short Activity in PNV, page-2982

The wheelbarrow example... you lent your wheelbarrow to your neighbour (you have an agreement that he will give you back an identical wheelbarrow when you ask for it back or she's finished using it), your neighbour gives you collateral to hold onto while your wheelbarrow is in her possession. This is cash or it is some other garden equipment. You are free to do whatever you want with her cash or garden equipment, including selling it, putting it storage, using it, or renting it out to someone else, however you must give an identical item of garden equipment back when she returns your wheelbarrow. Normally you can insist that the collateral is worth more than your wheelbarrow, like 105% of it.

She is free to sell your wheelbarrow and do what she wants with the money (title does actually pass to her, as the title to the collateral passes to you). Don't worry, you can get "a" wheelbarrow back when you recall it, she just doesn't have to give you the exact same one. As long as it is identical, you won't care.

There are other terms and conditions in a standardised wheelbarrow lending agreement, but those are the main ones for this question.