How many people still check there antifreeze each winter?

[bigrigpardo]

So many years ago as a teen I learned that not everyone is smart enough to keep the proper mix of antifreeze in there vehicles. It was my 1993 Cummins a week after I bought it it froze solid over night. Blew 3 freeze out plugs and the block heater out. No damage to engine or rad which was amazing but every year I run around as the weather gets cold and dip everything with my hydrometer. It is amazing that most of the cars I end up with have protection barely to zero some of them even worse. Yesterday I had to swap coolant in 2 Cummins trucks I have and my 72 c30 which we pretty much straight water. Amazing I swear but I will be damned to buy a rig and have it ruined by poor maintenance. It's amazing how over the year you may have forgotten that water pump swap or thermostat swap. I sleep better at night knowing my motors are safe from winters cold. So how many of you still do it? The local shops by me all use premix and don't think they need to check. Oh we I use full strength I hate paying for water.