And the reasons are ...

I believe that I drop everything to do something that comes to mind because:

• I'm impatient to see the thing done as opposed to waiting
• Giving in to the impulse to do said thing
• Knowing that if I write it down to do later, it might not get done because I am always in the middle of doing something else
• Trying to remember to do it later, sans writing it down, and then forgetting about it
• Writing it down to do later and then not looking at my notes where it was written
• Setting an alarm and then snoozing the alarm because I am in the middle of something else and didn't want to interrupt myself, which means that I wind up putting off, and never getting to, what I wanted to do in the first place.