Some fairies wanting to play a joke on you.

As you sit with your back against the log, you fail to notice two small fairies quietly approaching you from behind. You're actually blocking the entrance to their favorite hang-out, and rather than just ask you to move, they decide it would be much funnier to mess with you instead.

One of them plucks up a weed and tears it up into little pieces while another one starts on a simple enchantment. The two finish their preparations uninterrupted and then begin approaching you from behind.