What to do when your HU SNG opponent disconnects?

[theseus51]

Early on in the match, with blinds just turning 15/30, and me with a 1650/1350 chip lead, blinding him out would take a while (20 minutes to be exact). He would auto fold his small blind, and I would have to call when I was small blind.

On pokerstars, the disconnected person gets like 30 seconds to act every turn, so I decided to clean my room a bit. I found that after counting to 55, it would be my turn to act, I would click call, go back to cleaning and count again to 55, rinse, repeat. When this happens (and you one-table), what do you guys all do?