If you suspect that your ads are being targeted by fraudulent clicks, you will no doubt want to prevent this from happening.
By applying excessive clicking rules you'll be able to add, edit or delete a variety of rules which are set by yourself. These rules can be set to a certain number of clicks over a variety of time periods. These rules - when broken - trigger the visitor to be blocked from seeing you Paid Ads and therefore preventing them from running down your advertising budget.
For example - you might want to create a rule which blocks a visitor after it performs a third paid click within a single hour or the seventh click within seven days.
Your rules are not permanently fixed and you can alter them as many times as you like. This flexibility allows you to find the optimum method to block visitors or respond to specific sources of fraudulent clicks.