Outside of the ridiculousness of grown men fighting and apparently disrupting a positive event like a Celebrity Basketball Game which is for charity.... Resident Coli Hand-to-Hand combat experts........
1) How would an individual defend and attack one-on-one in a constrained movement space?
2) How would a group defend and attack one on one in a constrained movement space?
3) Is it more sensible to get to a wider space, cause it's not possible to defend or attack properly?
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Check the women a few rows above the fracas eating tostitos.....

. She looking like damn, "I got my money's worth".