Pick-Say Speaking Code When Hit By Boiler Neuro Attack

### Testmerges

#4003 #2536 #4182 #4131 #3865 #4178 #4132 #4196

### Description of the bug

I was directly hit by a Boiler neuro glob (stun gas), I was dragged away while I was fully affected by it.

While I was concious I used my 'Pick-say' macro to speak a voice line. When I spoke however the game uttered some of the text commands instead of just my line.

Instead of saying **RETREAT!**
I said "-bRETREAT!/b"


I've not been able to re-produce since I can't stun myself with a boiler attack offline.

### What's the difference with what should have happened?

I should not be speaking code.

### How do we reproduce this bug?

1. Get shot by a boiler neuro attack
2. Use pick-say to speak
...

### Issue Bingo

- [ ] Issue could be reproduced at least once
- [X] Issue happened in a recent (less than 7 days ago) round
- [X] Couldn't find an existing issue about this (https://github.com/cmss13-devs/cmss13/issues)