If someone would tickle an Engineer

haha, hey big guy *tickle,tickle*

The engineer would probably think WTH?  Or give a look of death. Or possibly like it and that's when you realise that this reaction might be scarier than a look of death ...

David would have to crate the Tickle-Morph

The engineers should have better checked Fifields breathing apparatus, there was a certain chemical which made him a shame of the shame of the academic community (weed not goo, what did you think).

Wait. I think I found the perfect video for this thread: *tickle, tickle*

I think the Prometheus Engineer that ripped David's head off would not be too keen.

The humanoids from AC might enjoy a little tickle though.