Ant

 Last night, I was laying in bed on my stomach, watching my drama on the tablet.

Swe-cha, meanwhile, was sort of laying on top of me and kept fiddling with my ponytail, moving it back and forth. 

Curious, I asked him what he was doing with my hair.

Swe-cha: "What to do when there is an ant on your mother's shirt ?"

Haha.  So that was it.

I asked him to catch it and squish it but he refused. He eventually got a tissue and swiped at it.