i heard a good one from a senior controller at work today:
i had heard it before on the internet but i found the true source...
back in the old days Piedmont was a major airline with a considerable hub at BWI. Jets go the left side (33L), and props on the right (33R). well, this controller was sequencing a C130 with a few Shorts. controller says, "baxter53, reduce speed to 110kts, following shorts traffic 4 miles ahead." C130 pilot comes back, "what do you think the stall speed is in this thing?" to which my fellow controller's trainer says, "i dunno, but i bet your co-pilot knows"
