Small weld repair performed on new vacuum bake oven (VBO-D) to repair leak stemming from manufacturing defect in external stitch welds. Cleanliness was maintained including a foiled welding helmet to protect the inside of the oven from contamination and the inside of Slim's head from government mind control rays. Work done by Slim, MarkD and KyleR.
http://berkeley.intel-research.net/arahimi/helmet/
It should be noted that aluminum foil may in fact amplify government mind control rays. I propose we begin research on faraday cage or mu-metal hats.