Rune Giant (Pathfinder)

[Moldon]

1. It get +3 "against anyone with no Big items"
does it bonus stack, if both main player and helper have no Big item? (I think not, but it is unusual wording)

2. In its Bad Stuff I must roll a die and discard items on 1-3. If I have Chicken on my head and roll 0 (zero) is my item safe? (or it must be errated like 3,872 Orcs?)