I made a "stink bomb" in chem 101 almost 30 years ago, and forced the whole east wing of the lab to evacuate. I just realized that I am an international terrorist. Should I turn myself in after all these years? Is there a statute of limitations?
HA! I have been tracking you all these years and now you have confessed. The gig is up. You will stand tall before the man and answer for this crime.
At about the same time (in college, of course) I was filling weather balloons with air and stove gas (methane), attaching a fuse and enough weight to keep them from climbing too fast, and letting them go from the roof of my apt building in Boston. One exploded about 1/2 way up the Prudential Building, another one sunk into an alley in Roxbury and blew up. At that point we figured we'd better stop.