Almost tragic surprise in well-managed COPD/Emphysema

I haven't popped in for a while, but this last Wed was a good reason to.
There are so many things that we just don't know until it happens & I believe that the lack of available information on COPD/Emphysema contributes to fatal or near fatal mistakes.
I was getting ready for work (yes, work) Wednesday & was doing a pre-getting dressed puff on my inhaler with spacer & aspirated an object into my lungs.
I began to choke.
My family was out, I was alone & covered in tears, snot & drool.
I had to be at work in 45 minutes & couldn't breathe.
I was actually afraid it was a bug because my spacer was uncapped...
Long story shorter, I slapped on my oxygen, then used the huff cough method to attempt to clear my airway while sitting & leaning into my hands clenched into a big fist.
Over the trash can.
On the toilet.
I didn't see anything come out, but I slowly regained my breath, cleaned myself up & got ready for work.
I have since come to the conclusion that it wasn't a bug-but rather a crumb of food that had dislodged from my teeth.
I have a denture & partial that have a tendency to trap food particles.
Lesson:
ALWAYS rinse mouth after eating.
That way my mouth is clear before using my inhaler OR my ventilator at night.
What if I had been using it in a rescue scenario?
We already have a esophogus that likes to redirect food & lungs that don't wanna breathe out.
I have choked on food (rice) twice before & have become more cautious as a result.
What is a little thing due to COPD that has made you more cautious about "simple" daily things?