Colbey is referring to this exchange in that final panel.
Be sure to head back one page to see the awesome DBZ-inspired portrait of Arthur!
Lastly, we're pretty close to unlocking the Longest Goodbye (Scot's final message to Colbey) for everyone, as shown in the Vet Debt meter (at right). Only $90 left to get there! Thank you all for the steady trickle of donations and story purchases. The meter continues to add up!