Conditioning

I used to have a problem with my ringtone after setting it to something unobtrusive that sounded like crickets

In summer the cicadas would have me reaching for my phone to answer calls when it wasn't ringing and missing others. 

Now I have a problem with the beep when my postman scans a package. 

I'm like Pavlov's dog salivating at the gate when I hear similar small electronic noises.