When I was playing SCP:C.B. on v.0.8.2 [with the mods: "Merged Mods" and "Bugfixes for events" (both made by the forum user: "juanjpro" )] 173 decided to do strange (and not funny... ) jokes...
I found SCP-914 but I needed a Level 2 KeyCard before using it (I had only a Level 1...), so I found the room where 173 breaks a glass. I got in here, took both Level 2 KeyCard and navigator but I blinked too early and 173 broke the glass and started following me. But I decided, instead of running away from him, to made him exit the room and close myself in it locking the door with a KeyCard and see what he would do... I did that and when I bliked he teleported in the room with the glass (doing the same sound effect of the broken glass, but with the glass already broken! And he made me jump too!), how the hell did he did that with the only door locked with a KeyCard?!
Another strange thing happend in the maintenance tunnel, I saw him coming torwards me when I blinked so I run away at full speed (I was in full stamina) when looking at him, then I went in the room with SCP-500 (still staring at 173 all the time witouth blinking...) where I blinked and 173 just teleported right in front of me (making me jump again! ) when I was like MILES away from him! (in the room with SCP-500...)
Plus when I was in the Heavy Containment Zone, he came out of NOWHERE when I blinked in a tree-way-corner and he was right in front of me! I ran away from him and when I blinked he went closer to me like he does usually but he had his feet (not all the body) under the ground and he fell trough it!
And, still in the Heavy Containment Zone, after escaping from the maintenance tunnel, he just teleported on me and snapped my neck when I stepped out of the elevator... (STRANGELY I heard him moving around when I was using the elevator...)

NOTE: He did all those strange things in the same save, maybe the saved game itself was the problem? I don't know...

I did that and when I bliked he teleported in the room with the glass (doing the same sound effect of the broken glass, but with the glass already broken! And he made me jump too!), how the hell did he did that with the only door locked with a KeyCard?!

He teleported in there. Canon-Wise, he probably found the nearest vent out there and came in through it.

And, still in the Heavy Containment Zone, after escaping from the maintenance tunnel, he just teleported on me and snapped my neck when I stepped out of the elevator...

That means 173 fell out of the map and dropped down. That's a true bug that's been known for a while.

It startled me, it spawned when the elevator went back to the tunnel of SCP-049 and disappeared soon after.

He spawned (not teleport) repeatedly in parts or it was not to be, SCP-914, triple corridor, ect ..

Don't bump month old topics, mind you.

To be fair this is the "Bug reports" section. In here you are allowed to bump threads as long as they are not ancient and still related to existing Bugs

Aaaalrighty then!

Mr. Shy-Guy wrote:when I was in the Heavy Containment Zone, he came out of NOWHERE when I blinked in a tree-way-corner and he was right in front of me! I ran away from him and when I blinked he went closer to me like he does usually but he had his feet (not all the body) under the ground and he fell trough it!
And, still in the Heavy Containment Zone, after escaping from the maintenance tunnel, he just teleported on me and snapped my neck

I've seen youtubes have this problem 2 and I have the same problems here to, and I think I know why.

Apparently I was no clipping around to see going insane flying about out of the map! I think the reason he comes out of nowhere is because he was flying overhead them landed on the roof of the room you're in then goes through the roof and says "Sup bro!" I think thats why. (BTW you spelt three wrong)

This is just my opinion