I have to adorable just over 1 year old brothers. We've had them since they were 16 weeks old and have a chip catflap. Usually we have them in overnight but since the very first heatwave we have given them free reign. I have just noticed that one of them is really reluctant to use the catflap to go outside, especially if there is someone around to open the door. Coming in doesn't seem to be a problem. Any one else ever experienced this? Cat tax included 😍