The fellow with his hands in his pockets is saying: "Now you realize that the opposite faces of a standard die always add to 7, so the one on the left is obviously a bogus die because you can see the 3 and 4 faces at the same time. A trifling matter, and fussy of me, but we all have our little ways."
[The last bit about the trifling matter is a quote from Eeyore.]
Researcher, Dr. Murphy: "I just came up with a new theory -- if the probability for an event to occur is non-zero, and the probability for the event to occur stays non-zero forever, then given enough time, the event will happen. I'll roll a pair of 7's eventually."
Assistant: "Right...let's make it easy for the average guy...if anything can go wrong, it will. Like it just did!"