[Worker 11811]

Let's share how we avoid such mistakes then....

My rule is simple. NEVER have more than one bottle open at any given time...

It's pretty easy to make careless mistakes. I try to avoid it by doing the above and making it a habit.

Agreed!

I do the one-at-time thing, too. I also reread the label every time, before pouring anything.

I just started experimenting with Diafine. If I get the two parts mixed up, I am screwed. If ANY amount of Part-B gets into Part-A it will be ruined. Therefore, I need to double down on paying attention to what I pour, where and when or else I risk trashing $50 worth of chemistry.

It might seem silly at first but, after a while, it becomes a habit.