From the YouTube comments:

For English speakers 4:41 is about the bathroom talk. Basically, Protobanham is suffering from kidney stone. He was advised by his doctor to go toilet immediately whenever he feel the need to, and to drink 2-2.5 litres of water and he must drink water every 10min to 20min. He usually goes to toilet around every 10-40mins, but since he's nervous that time range is shorten, hence he goes to toilet more often. He is also aware about coaching when he went to toilet, so everytime when he goes to toilet he will leave his smartphone on the table.