He thinks Mayweather doesn't have the strength to hurt him because of his size? If he thinks that....then....

Yes I know of the instance he squared off with Ray Leonard. It was him and Zab and Ray and all three of them were having a laugh and playing around.

Ray was talking about his era and Mayweather said with a grin "Ray... but you know you wouldn't last in our(referring to him and Zab) 's era."

And then all three had a good laugh. It was fun and games actually.