Well, several here have preached to the importance of replacing heater hoses BEFORE they fail, but it appears that some of us (read me) have failed to take the warnings seriously enough.
I had purchased new hoses from the dealer a month or so back, but they still sit in a bag on my work bench where I left them after getting home from the dealer. The tow truck driver found that rather amusing.
REPLACE YOUR HEATER HOSE NOW!!!!