Honestly, what's really sad about all this is...I've used this Great Stuff before - without ANY Problems. Of course the "single - use" clause is easily overlooked.....but what Really REALLY torqued my gears is; The "best if used by date" (on the bottom of the can) AND there's No Notice about an expiration date! I still have a receipt from Loew's from 2014, when I purchased (2) of these cans. I recently wanted to use a can and after shaking for about 3 minutes, I removed the cap & screwed on cheap plastic straw that directs the foam. Got glasses on & gloves and - NOTHING - No Flow (fast or slow) & tried again (squeezing harder) - SNAP top of can nozzle broke off) - I tried again with another can - figuring it was a fluke .....shook can vigorously for 5 minutes - went through the same routine - SNAP AGAIN! ? 1 can had a 2009 date on bottom & other had 2016 date on bottom! Does DOW have a metal (or strong) nozzle - to use when original break?