@developers: please comment An existing/active rule with a timer produces an activation if the conditions are met. This activation is now part of the Rete and continues to be so until the LHS turns to false; the repeating timer merely retriggers the execution of the consequence. Killing the rule itself merely prohibits new activations. Its debatable whether removing the rule should also retract pending activations. This is not defined/documented for rules without timer (at least I'm not aware of any such documentation), but surely all kinds of rules should be treated alike. -W On 06/07/2012, Ladd <ladd(a)codemettle.com&gt; wrote: