Did you mean Frank? http://www.sheldoncomics.com/archive/040820.html
Also: It's entirely possible that this is Larry's second appearance in the strip. (I can't find the strip, but there's one where Arthur's explaining flight to Flaco, when Larry bonks right in front of them. Know the one I'm talking about? Link to it, below, if you do!)
Edited to add: Sheldon forum user "LizardKirk" found Larry's earlier appearance. Thanks!
I dunno, geese are pretty slow on the ol' reaction time. I've come very close to hitting them with my vehicle at work.
Which that doesn't sound so bad until you factor in that I drive an armored car, and the speed limit where the geese are is fifteen miles per hour.