Try

Linc Rabbit loves craisins. He's learned the sound of the bag opening and goes running for his treat every time he hears it.

He watched his human go to pantry and grab the bag from a lower shelf. He knew that he could easily reach that shelf. One short hop and the craisin bag would be his. 

He'd already mastered plastic bags. A few quick bites with his razor sharp front teeth tore a big hole in the bunny pellet bag. The craisin bag would be similar. 

But the human never left that door open long. Try as he might, he couldn't figure out doors.