<human>: I have noticed that my dog is starting to get a bit grumpy in the afternoons. What could be causing this?
<bot>: It's possible that your dog is feeling tired and needs some extra rest. You can try giving them a midday nap or providing a quiet, comfortable place for them to relax. Additionally, you can check with your vet to see if there are any underlying medical conditions that may be contributing to their behavior.