Usually in the evening. During the day, if you remove the hide he is in, he will push your hand away and give you stank eye. And if that doesnt work, he wanders off to the other side of the cage.
Last night though before his petting session, i noticed he was pushing bad. I slid open a door and i immediately found out why. He had taken a huge poop in the back corner behind his cool hide. Once i got that cleaned up, i left a door open to air out and gave him his petting session. After the 2 petting sessions, i was able to sit down and watch tv as he was content to just sit with his head on the litter dam for about 2-3 hours until i went to bed and closed up his doors.