Fun with Signs

a few days ago, there was a sign in the elevator of the building i was working in. it said:

SPACE
AVAILABLE
FOR WEB
DESIGNER
CALL
212-555-4878*

(*obviously not the real number) later that day when i went out to lunch, someone had written in a few of their own additions, leaving the sign to read:

NO SPACE
AVAILABLE
FOR WEB
DESIGNER
DON'T CALL
212-555-487*

(*they had also ripped off the last digit of the phone number.) when i was on my way home, i noticed that someone else had scratched out the added in words and wrote the 8 back in at the end of the phone number.

the next day, there was a brand new copy of the same sign. at lunch, the last digit again had been ripped off. when i went home, it was written in again. the next day, the sign was completely gone. i wonder if the person who was posting the sign gave up, or if the person who was vandalizing the sign won. they both seemed stubborn enough to keep that back and forth going for days.

do you think hannah's involved? who's hannah? a new sign the next day by the elevator in the lobby:

Here for Hannah's tupperware party on the 3rd floor? do the environment a favor and walk up the stairs.
thanks bunches,
"Hannah Banana"
[picture of a wheelbarrow]

i can find four things wrong with that sign. anyone else?