What's Your On-Hold Threshold?

Here's a question no self-respecting message on-hold producer enjoys asking:
What's your On-Hold Threshold?



Depending on the - let's call it - "atmospheric condition", following is a mathematical formula for calculating your perceived time on-hold...

Where...


o = actual time spent on-hold;


y = negative on-hold atmosphere, such as silence, radio, boring music or lifeless voices;



k = positive sounding, professionally produced custom messages & music on-hold;



AND



! = perceived time on-hold...



o + y = OY!


OR


o + k = OK!