The pen is mightier than Fergus

Fergus never has chewed cords or table legs, or side of crates, he had a week of his life that baseboards were targeted but bitter apple solved that problem. Out of the blue Fergus decided that pens taste good...The pen has been sitting on the side table for two weeks, and all of a sudden it became a chew stick...So of course we played the trade game...I will give you something appropriate to eat and you will give me the pen, now all the pens are in a drawer and he sits and begs at the drawer to please give him a pen...so the pen is mightier than Fergus.