Done for amusement in most cases, although walmarting for research purposes is not unheard of.
"Naw man, everyone seems to have some weird leg disease"
B.- Going to wal-mart and fucking shit up
Roger: You mean wal-marting?
Ted: Sure whatever.
Rodger: HELL YEAH!!!
Rian: What's that strange costume for?
Joe: Wal-marting, what else dumbasss.
Rian: Just asking...