MUMBAI, April 28 -- The Nagpada police on Friday arrested four men for allegedly assaulting the waiter of a restaurant-cum-bar in Kamathipura after he urged them to pay their bill. The men were at the bar for a party, but were trying to pass on the responsibility of paying the bill to each other when the waiter suggested they split it equally among themselves; this angered the youth and they smashed beer bottles on the waiter's head and assaulted other staff members, said police....