Yep he does go into the cat run whenever he wants,it is our house he tries and gets out, when somebody is coming in or going out. If me and hubby have to go out anywhere will have to keep them in our kitchen because thats how they can get into the cat run through the cat flap in the kitchen. My sons can be so forgetful sometimes and will leave the downstairs toilet door open where the other cat flap is for the other two cats we have. When I go to bed at night, I have to wait for everyone else to go because we leave the Bengals in the kitchen,and leave the other door open for the other two cats through the toilet catflap,(am I making sence)