You didn't feel very worried watching through the glass.
Several Level-5 security guards walked alongside SCP-049, keeping their distance and guns aimed at the creature as they led him towards a D-class' cell.
The experiment had only just recently been cleared by the 05-Council; the test would see if the "Doctor" could really be put to use on the Medical staff with close surveillance. He had been particularly cooperative for the past six months, and seemed surprisingly open to the idea.
A few steps closer, when the creature suddenly paused. His cloak shifted on the tile, waving slightly as he glanced around. The guard closest to him nudged his mask with the barrell of a gun.
"Keep moving, 049." the man grumbled.
And that it just what the anomaly did.
Suddenly, his glowing white pupils dilated in the void behind his mask. His head snapped to the left, staring straight at you.
"Pestilence!" he cried, sweeping himself closer to where you stood behind protective glass.
The guards began to shout. They followed the Doctor, pointing their guns high. Unfortunately, their machines did nothing against the touch of his gloved hands. He brushed a finger across one man's wrist; in a matter of moments the guard collapsed to the floor lifeless.
More shouts. Bullete began to fly, some chipping into the glass.
Another dead.
And another.
And another, and each one that came after that. An alarm began to blare, and the room's luminescent lights switched to a blinking red.
"You carry disease." the entity spoke, eerily calm. His hand traced the glass before you. "and I bear the cure."
Suddenly, he pulled his hand back, before violently thrusting it into the barrier. It shattered with a tremble, weakened by the previous bullets still lodged in some of the glass shards.
SCP-049 approached you, hand stretched out like an offering. "I will alleviate your suffering."
When you had no longer had room to retreat, the dark leather of his glove gently met your forearm.
A moment passed.
You still breathed.
The entity, visibly confused, touched you again. This time your shoulder. Again, no reaction.
"How peculiar..." came the whisper from his mask.