SET SOAPBOX ON

>put a SUSPEND or SET STEP ON in yout interactivechange method and see what is happening.

ASSERT. Use ASSERT, not SUSPEND or SET STEP ON.

1. It works.
2. It gives you a choice of not stopping.
3. It gives you a chance to have a meaningful message
4. IT WON'T CAUSE PRODUCTION CODE TO CRASH IF YOU ACCIDENTLY LEAVE IT IN.

SET SOAPBOX OFF

Carry on.