???

So, I have been curious about a bumper sticker I happened to see (on a Geo) a few days ago. 

Green lettering on a white background: “Oh no, not another learning experience.”

Am I missing something?  I understand what a learning experience is, and I suppose I could see why that would be somewhat dreadful…but sereously.  What is going on here?  I am just curious who thought that insightful or funny enough to broadcast to other motorists.  Maybe I need to brush up on my adages, but I am stuck wondering who would be rifling through bumper stickers, find that dandy, and decide that it would look nice on the ass end of his/her hatchback. 

Any feedback would  be appreciated.