An old brick has a natural cavity on one side, providing a cool daytime slug hiding place. Look under any you have around the garden and dispose of the slugs found sheltering. Purposely position a few to create slug shelters, and check daily. A brick also makes a handy squishing implement.
Q Angle of the Knee. The Q angle of the knee is a measurement of the angle between the quadriceps muscles and the patella tendon and provides useful information about the alignment of the knee joint.
You will need a long-arm goniometer. The Q angle can be measured in laying or standing. Standing is usually more suitable, due to the normal weight-bearing forces being applied to the knee joint as occurs during daily activity.