Coach Throws Shoe at Referee, Player Throws Shoe to Play Defense - Technically Speaking...

A disgruntled head coach threw his shoe at a referee during a basketball game, while a player used his shoe to try and block a shot attempt, leading to a few technical fouls and one ejection for illegal use of sneakers...kind of.

NCAA Men's Basketball - Player Throws Shoe to Play Defense: During a Stonehill College vs Long Island University game in Brooklyn, Skyhawks guard Tony Felder slipped out of his shoe while on offense in the front court. As the player picked up his fallen shoe, play shifted to the other end of the floor and instead of putting the shoe back on, Felder sprinted to play defense, shoe in hand.

As Sharks forward Tana Kopa pump-faked a three point try, Felder jumped into the frame, appearing to throw his shoe in an attempt to block the potential shot. Play was whistled dead immediately and Felder assessed a technical foul for the shoe throw.

In NCAA Men's college, there are two basic types of technicals: Class A and Class B. The primary difference between the two is that Class A pertains to unsporting acts while Class B includes technical fouls that aren't maliciously unsporting in nature or otherwise don't rise to the severity of Class A. Class A's result in two free throws, count as one of two technicals for disqualification, and are added to the team foul count for bonus purposes. Class B's result in one free throw, do not count as one of the two DQ technicals (through three B's result in an ejection [or two B's plus one A]), and do not get the team fouls-toward-bonus treatment. Both resume at point of interruption.

NFHS Boys' Basketball - Head Coach Throws Shoe at Referee: While the Brooklyn shoe-throw might not have risen to the level of Class A, JSerra head coach Keith Wilkinson's conduct certainly did as he threw his shoe at a referee during a Trinity League game at Mater Dei after a no-call. Add in a second shoe-throw/spike and Wilkinson was ejected...and suspended six games.

High school ball has no Class A vs B technical foul distinction—these were simply two bench technicals assessed to the head coach.

Long story short, throwing a shoe to play defense or otherwise is nearly always illegal.

Video as follows:

Alternate Link: Coach Throws Shoe at Referee, Player Throws Shoe to Play Defense - Technical Foul Review