Retrieving Data Off Of Guinnessed Laptop

Hi fellow geeks.

I've managed to pour nearly a pint of Guinness into my laptop and now it doesn't want to know me anymore.

I've previously bought a USB thingy that enabled me to access data from desktop hard drives and wonder if a similar device for laptops.

I've tried searching on the ayatollah's ipad (which I fudging hate) but I can't find one.

Does such a thing exist?

(It's a Toshiba Satellite, if that's any help.)

Thanks!