Don't be ridiculous. This would never happen.But wait! Sheep are on the equipment list. So I could spend the first session roleplaying the process of finding someone who has sheep, and negotiating the purchase of a bit of fluff. And then, having determined fair price for that fluff, I will buy the whole entire sheep for the list price of two gold pieces, and earn back my money selling fluff at market rates to the local wizard's guild.
The character is a rogue, she would find the sheep and steal the fleece, potentially covering herself by casting minor illusion while pulling the fleece from said sheep's back (after all the component is in hand as soon as she puts a hand to its wool coat).