The truth is chuck Norris sneezed while he was in the ride .... I heard it from Walt himself ..✋ - TINO  372.0 #371 10:51AM

This is the story I was told when I was lucky enough to get a backstage tour of haunted mansion. There are crisply three panes of glass right there and the cracked on is the middle one. The middle pane is a different kind of glass that is incredibly expensive an had to be lowered into place by a crane. Imaginears were told that were it to break it could not be replaced. Cut to sometime in the late 80's. Someone thought they would be cool if they snuck in a pellet gun and then shot through the glass on that scene. The pellet caused the first pain to shatter and got stuck in the second causing the crack. Knowing they weren't able to replace it they got creative and made our eight legged buddy. - lostgirl7988  541.3 #208 11:39AM

I've seen it. I believe it was a gunshot from back in the day though? I could be wrong but that's what I've heard - Nicole  380.2 #356 10:27AM

I've also seen this, it's pretty easy to spot if your looking for it. It is around eye level from your doom buggy. I believe it was caused by a pellet gun. - MightyWhitey  648.3 #165 10:33AM

I have seen it. - DisneyFanZoe  1096.7 #75 10:42AM

I've seen it to. I heard it was caused by a bazooka. - Mouse4life  1045.5 #82 10:46AM

A guy shot the glass with a gun, not a sling shot and yes the glass is extremely expensive to replace so they added a fake spider to cover over it - CaptainPirateKalven  288.1 #678 10:48AM

I heard it was done with a potato gun 🔫 - Philliprocks  276.1 #763 10:49AM

I heard a pellet gun in grad night a couple if years ago. I also heard the glass is a massive piece, and the only way to replace it is to slide it down from the roof. I don't know if that part of the ride is underground like other parts if the ride, but either way it is a challenge! - 7mouskedoodles  161.1 #2138 10:58AM

i think there a similiar one in the grand canyon glass - pikarich  606.0 #180 11:04AM

Challenge taken. Be back to the parks in a couple of weeks and it is going on my to do list. - verolly  301.8 #601 12:36PM

I've seen it :) - MrsDisneyMommy29  262.6 #890 12:44PM

If you are looking for it (I was literally just on the ride 20 minutes ago) toward the end of the ballroom scene before the Doombuggy turns for the attic. Count 2 pillars in from the wall. (The pillars separate the glass) it is at eye level on the right side of the second pillar. You see a large spider about the size of a hand and behind it large cracks which are supposed to be the 'web' - BlueberryCrusader  650.7 #161 12:47PM

They got the spider from a dollar store. 😱😂😂 - bluefairy  627.1 #174 3:14PM