When an animal or a person attacks, the size of the shield and maybe a shield handling skill affects the chance the attack is blocked by the shield. Maybe if the character is carrying lots of stuff then blocking would be less likely (imagine a person carrying four shields, a bow and a sabre, are you an octopus or what??
Anyway, if the blocking is a success, the person suffers no damage at all, but the shield may be damaged from the attack (turn "used" more quickly). Sequential attacks will cause the shield to crumble eventually.
To counter the higher chance of blocking all the damage, the chance of "your shield was ineffective against the blow" is now more likely.
Shield skill. Might depend on physical strenght. If a character is weak then they might get worse chance of blocking when using heavy shields. Also if a character has no shield at all, maybe it would be easier to dodge because your hands are free to keep balance.


