Verified answer

In space, it's never "Miller time." - Bloom County -

Takes too long... they have to hang on the wall in a suit for several hours breathing an alternate atmosphere before EVA to wash the nitrogen out of their systems so they don't get the bends... don't ask me how I know. This is because the shuttle or space station has to have high enough atmospheric pressure to cool electronics.

Aloha

An "EVA" is in fact "Extra Vehicular Activity"...whether outside of the ISS or any other space vehicle (like the Shuttle) when orbiting the Earth or even in transit to and from the Moon or while on the Moon (for that matter). Any activity on the outside of any space vehicle is considered an EVA. Common sense answers the rest of the question (I would hope and imagine) that there are no gas-stations or munchie-marts anywhere out in space. If there is, something got past me in the news that I never imagined possible my friend.

Here is whwt wikipedia says:

Extra-vehicular activity

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Astronaut Bruce McCandless on an untethered EVAExtra-vehicular activity (EVA) is work done by an astronaut away from the Earth and outside of his or her spacecraft. The term most commonly applies to an EVA made outside a craft orbiting Earth (a spacewalk) but also applies to an EVA made on the surface of the Moon (a moonwalk). In the later lunar landing missions the command module pilot did an EVA to retrieve film canisters on the return trip.

Due to the different designs of the early spacecraft, the American and Soviet space programs also define an EVA differently. Russians define an EVA as occurring when a cosmonaut is in a vacuum. An American astronaut, in contrast, is not considered to have made an EVA until at least his head is outside the spacecraft. The term stand-up EVA (SEVA) is used for being partly outside.

Steve Robinson in an EVA (note the extended arm)EVAs may be either tethered (the astronaut is connected to the spacecraft, oxygen can be supplied through a tube, no propulsion is needed to return to the spacecraft) or untethered. When the tether performs life support functions such as providing oxygen, it is called an umbilical. For untethered EVAs during space flight, capability of returning to the spacecraft is essential; see Manned Maneuvering

Don't forget that they also have to check the air pressure in the shuttle's tires when they do an EVA.

Dude, they're messin' with you. You can't smoke in a space suit, and the shuttle can't be refueled in orbit. Oh and you don't even want to discuss going to the bathroom.

absolutely true.