I have a bit of a problem. A co-worker took off of work for two months (possibly longer.) None of us like her, so it's been a relief to all. Unfortunately, this is also where she grocery shops. She popped by the other day and asked (not jokingly) if we miss her, if things are running less smoothly without her, etc. I was a bit shocked she thought that. I could only come up with "It's been too quiet here without you." Any suggestions for other polite responses to her questions next time ?