Talk to the delivery man. Pour him a normal swill by colleting the tankard and filling it from the swill tap.
He likes hair growth swill? That is weird. This hair growth issue has been up before...
I think it was Bozo's shampoo? And the label on the hair growth swill is interesting too.
Middle Rufus You should mix Mama Bozo's milk from the counter at Casa Bozo given that Grandpa Bozo is already cooking. Give the milk to Left Rufus.
Mix it with the swill and serve it to the delivery man. Two zlottis.