The other day, I found a full can of cheap (and rather tasteless) Cara pils beer among the parked bicycles next to our office building.
I decided to put it in our lab fridge and see what would happen. Under normal circumstances, it would stay there indefinitely (along with a diverse assortment of forgotten food stuffs and leaf samples) as Cara-pils ranks very high among the beers to avoid (as is expired Zulte, for instance).
Nevertheless, I hypothesized that the can would be predated rather sooner than late by one of our colleagues,
- who likes beer, and
- who does not (yet) know the bad reputation of Cara pils.
Results (figure below) support my hypothesis:

How did you ascertain that it was the foreign PhD student? And how will you replicate the study?
Are you aware of the journal Beerlandia? If not, it was a Leuven product from a few years ago – some of your ant people may remember the details. I can’t check it now, I’ve got The Beast sat on me.
The foreign PhD student confessed (his desk is in my office). He said: “Hey man, if people start accusing me of bringing bad beer to the lab, I may as well drink it.” Very correct IMHO.
Replication will be difficult. My experimental subject is trained now. Maybe on another floor.
Update: I found another can of beer in the lab fridge
(not a Cara but a Palm) and a yellow sticky note: “The law of conservation of beer states that beer cannot be created nor destroyed but can be transformed into other forms of beer.”
Which puts Palm in the right position (according to me): it has already been drunken… ;-).
Fun story.
If you find a bottle you can try again with Westvleteren