TKIC said he wanted to go to bed. This didn't register in AKIC's brain. AKIC thought that TKIC wanted to do something else like watch a DVD or play with a train set.
It was only after TKIC said that he wanted to go to bed, five times, that it finally registered in AKIC's brain. This wanting to go to bed was out of character for a boy who normally would protest passionately when told it was bedtime.