Why don't they just put up a normal sized fence, but cover it in cock lube so that it's really slippery and anyone who tries to climb it will just fall off?
To prevent people from jumping over, they should put tasers along the top, with computer-guided targeting systems that will shoot the tasers into the genitalia of anyone jumping the fence.
If somebody does make it over, they can just beat the person in the groin with sticks.
Sure, then the White House grounds would be inundated with masochists getting their jollies by scaling the fence; soon, as the prisons fill with them the ACLU gets involved, declaring the security practice "discriminatory," and our courts are clogged with lawsuits declaring the right to have one's testicles electrocuted is guaranteed in the Constitution. The Department of Health and Human Services will find some US code that can be interpreted loosely to agree with that assertion and circumvent Congress, forcing states to provide Testicle Electrocution centers. Due to cost concerns the states will be allowed to make electric car charging stations dual purpose ("charge your electric car...or your nuts"), but soon angry parents will protest because charging stations near schools will have to allow guys to pull out their nuts in public. The teachers' unions won't allow the government to move the charging stations because they are in bed with the "green" movement, so now regular old perverts will hang out at the stations and pretend they are electrocuting their nuts.
In conclusion, your idea will lead to perverts showing their balls to school girls, you insensitive clod.