The fact of the matter is that whether its done by the books or not, bribery can be done very easily. Paying for a spouse’s dinner? That’s the least that a company can bribe someone if they wanted to. Besides, this is just a part of business that frankly doesn’t even bother to be investigated. People bring clients to baseball games, dinners, etc. Money talks and can usually be used for illegal purposes. Honestly, the best way to deal with something like that is to make it all illegal or make it all legal, because companies are going to push the limits on what they can get away with.