I think the a big part of cooking successfully is paying attention.  There have been times in my life when I have been really into cooking.  There have also been those times when I am just not that interested and it is easy to get distracted.  Distracted cook = failed dishes.     I remember a time I was in a drug store with my first husband.  I found him looking at greeting cards.  He had one in his hand and his efforts to keep himself from guffawing loudly had his whole body in a kind of concerning tremor.  The card face: I wanted to get you something useful for your birthday. Inside the card: but you already have a smoke detector.     Yeah, so amusing.     I did manage to get through Thanksgiving dinner without burning anything, although the mashed potatoes were not hot enough.  The next day I set of the alarm with burnt toast.  
"A grandma is just an antique little girl"...unknown