Watching glue dry

I was fixing some toys of my 5 year old and he asked me if he could watch the glue dry... I told him "son, that's like watching grass grow 😒"... his reaction, "really 😱... can I go in the backyard?", me "yeah, sure, I guess 🤦 😂".

He's still there... sitting on the ground, watching... asking every 2 minutes if the grass is any taller 🤣.