Timothy may have risked his biscuit a lot recently, it was especially stupid for him to explore the deep seas alone, but he did so anyway, despite his massive IQ that may advise him otherwise. He survived the attempts he made, regardless of the odds that were stacked against him, however, after destroying that giant squid, in all his confidence, he decided that he'd rather not leave his bony den for a while.
The den was safe, it was thick, it was secure. So, after filling his belly with about forty pounds of squid meat, he then left its massive carcass behind, and headed for the den.
“No point in dragging that bastard around, I can't lift a twenty-ton squid, nah. Mother nature's gonna have to use it as a heavy, late dinner.” He thought to himself, but at this rate, he was mentioning mother nature so much that she might strike him down at some point.