In case noone's noticed this (I haven't seen any threads on it here) There's been a strange man following (or just appearing near) the Elric brothers, Winry, and possibly Mustang.
Actually he doesn't look to weird.....
a picture of him can be found on page 54 of book 4
the top panel
bottom right corner
he's also found in book 2, 4, 6, (7 maybe, i haven't checked), 8, 10, 11, 12 tiwce
(he might be in nine im not sure)