Hello; I remember seeing a guy walk in front of a jet prepping for take off. He got sucked in the intake like a rag doll. I don't take engines lightly as a hobbyist so best believe I wouldn't take standing in front of a air slicer granted. Like I always say, you can become an engineer but it doesn't mean that you're actually smart. Stop standing in front of these things because engines can run away and go full throttle at times even if you think you have the full control or "expertise" around them. Garrett TPE331 turboprop engine used in Merlins was one of very best I ever operated without one single engine failure in thousands of flight hours. Incredible Bullet-proof power-plant with instant response.