Not silly at all. There are no plausible non-terrorist explanations. OTOH, ramp security is a joke. For a case of vodka you could have the run of the place, especially at night.
Wanna bet a Moslem ramper fails to show up for work tommorow?
And all the U.S. airports with sloppy ramp security... it's going to be an interesting few weeks, at least.
Now, that is silly.