If we want to get technical, "last time" was during "Another Lois" in which Trask and B39 didn't go check out the Irig farm, because there was no Superman to kill.
PR:The last time we had a confrontation with B39 in Smallville. We ignore "Another Lois" here, because nothing happened in Smallville. Now if we talk about "Last time during the hostage crises at the Planet" we would mean the time that Lex died.
LOIS: I should really be worried, should I, that Clark prefers to be beaten up by Trask instead of me?
Clark:Hey, right now Trask is just driving me around in a van. No beatin involved. At least as far as you guys know.
