So Tiberius has zero reguard nor concept of what personal space is. None of know this better than Potato, who is usually fine with him grooming her. But sometimes she is not in the mood for his persistent brand of friendship. And she give me the most annoyed look when he is in her bubble. Note, you won't see any of this with Missy. He tries, but is immediately slapped, bit, or growled/hissed at when he gets within 6 inches of her.