My oldest does the same thing. do you have a spicific time that you give him the wet food? if you make sure that it is always at the same time then he should start to relize that he wont get any till that time. i feed my cats wet only once a day and dry once a day and if i keep it rutine then he dosent beg if i stop the wet for any amount of time i have to start over with him begging.