Captain's Knuck (S3E19)

When Captain Picard needs a backrub, Doctor Crusher prescribes a vacation. Trouble is, the all-inclusive resort Commander Riker recommends appears to be "full service," and the pages in his book aren't spill proof. Can Picard go "chest to chest" with Riker? Is there any job on the Enterprise dangerous enough for red pants? What is "low knuck"? It's the episode where we prescribe to "The Maron Rule."