big big problem!!!!!

whats up everyone......so heres the story....just bought a new boat(1989 mastercraft ts190) about two maybe three weeks ago......us guys thought it would be cool to put a couple subs in to add to the stereo....Im about 2hrs away from my boat so i guess my older brother decided to put it in a couple days ago........making a long story short......he screwed four screws through the bottom of our new boat......whats even more stupid is he didnt even know he did it.....left it for my dad to find and he totally flipped along with me as well....couldnt believe this happened.....i havent seen the damage yet and here is my Question......how much damage is it gonna cause and is it an easy fix????please let me know soon cause i cant stop flipping out....just want to punch my brother in the $#%@#$% mouth!!!!lata

How did he put screws thru the bottom (hull) of the boat??? I'm assuming you meant PS190. IF he screwed int othe floor you ok. Unless he used 7/8 inch maybe even longer screws they will not go thru the hull on the bottom. Did he screw thru the sides of the boat? I've seen that before......