Will the 16F84A die one day?

Ok, well, the only thing i could suggest, even if it really don't turn me on is to do a loop and use the Timeout feature of SERIN or SERIN2 or DEBUGIN. Almost the same thing we talked about in your previous thread...
http://www.picbasic.co.uk/forum/showthread.php?t=7218

except you don't need any PAUSE, SERIN will do it for you. Read the whole SERIN or SERIN2 or DEBUGIN sections of your manual.