Definition. 1  Lactose intolerance refers to the inability of the body to digest lactose. 2  Lactose is the form of sugar present in milk. The enzyme lactase, which is normally produced by cells lining the small intestine, breaks down lactose into substances that can be absorbed into the bloodstream.
1 Tipping upon drop-off of your car is totally optional and is not done by the majority of drivers. Tip your valet when your car is returned to you from the parking lot.  A tip of $1 to $5 is the typical range, with $2-3 being most common.
in a 1990 Honda and tip a dollar the valet guy will be grateful. If you give the same tip while driving a new BMW, not so much. The nicer the car, the nicer the restaurant, the nicer the event the bigger the tip should be. If the valet cost $5, tip $1. $10=$2, $20=$5.