How much pain?

[novice]

If you measure pain on a 1 to 10 basis with 10 being blackout i've witnessed a 10 and, IMO a 12 or more.
The 10 was a result of a friend kicking his motorbike in anger. There was a gap between the inside of his boot and the steel safety cap. Half of his big toe went down the gap, the other side stayed inside the steel cap. He screamed, looked at me in anguish then fell over unconscious, albeit momentarily. When he awoke he began screaming again.
The 12+ was hammering a too big dynabolt into a too small hole, while perched atop an aliminium extension ladder. (15 feet )
The hits were getting harder until one went astray. His thumb literally exploded. Blood went amazing distances. He instantly went limp and fell/collapsed backward. Somehow his legs fell through the rungs leaving him dangling upside down about 5 feet above the ground. He didn't regain consciousness for at least a minute. He too began screaming and didn't stop untill the ambos arrived with happy gear.