Hi.

Is it possible that the MessageTally gets spoiled while it runs? I usually 
see that in the method spyEvery:on:, there's a local name called startTime. 
It is set to Time millisecondClockValue. But when it is used to subtract some 
clock value from Time millisecondClockValue, just below that, somehow it 
appears to have been rendered into nil. The report comes out, though... is it 
that it keeps running for a while until it gets killed, so that it spies one 
time too many times, spies the void or something else, and so the context the 
tally is using to spy has gone astray or something of the sort?

Andres.