I have experience with HF. NASTY stuff. You get that stuff on you, you don't even know it for ~12 hours. Then you realize it when your bones start decalcifying and you're in excruciating pain. I'd rather play with HCl than HF, at least with HCl, you know you're being burned.
In industry, if you spill HF on yourself, you can pretty much guarantee that the next number of hours will be spent getting said area rubbed with special cream by a safety officer. And no, the safety officers are not beautiful women, in general.