At 7 AM, in-bed Cat Fu wakes me up. Katherine (without waking up) interrupts it by moving and nudging the wrestlers off her. I get up and fed Emily her pre-breakfast.
At 7:30 AM, I hear a cat throw up. I look for suspects/victims/patients. Emily sits calmly in in my office on the sundeck. The boys both sit calmly downstairs, but there is vomit with (used) kibble in it on the front hall rug. The kibble implies Emily, but I know she didn't have time to get to upstairs and settle in -- but one of the boys throwing up solid food 11 hours after eating dinner is a serious worry. I clean it up and get the Sunday paper.
By 8:30 AM, I am back upstairs. Katherine doing litterboxes upstairs reports a minor mess in there. I turn around, and realize someone threw up in my office. Maybe I missed this the first time, but it's almost certainly Emily. The place and kibble remains are right.
Poor Emily. At least it's a known a problem though.