While it seems like a long shot I can imagine that Aaron Donald might be thinking how much fun it would be to not be double teamed 75% of the time. He might be think that he and Garret together would be a historical pairing like the Fearsome Foursome, the Purple People Eaters, and the 1985 Bears. Aaron Donald will already go down in history as one of the best DL ever but he would have a chance put a huge !!!! point on his already great legendary career.
Of course he also might just be thinking how nice it is to just spend time with the family.