I know that a typical stellar black hole would spaghettify someone who crosses its even horizon. Is it also true for a hypothetical tiny black hole created from more day to day range of masses (e.g. an apple) - will someone who touches such a black hole spiral inwards into it and get dead?

Consider an inertial observer in flat spacetime with a choice of coordinates $(t,{\vec x})$. This observer can expand a quantum field $\hat{\phi}$ in more than one complete set of orthonormal modes. Let us consider two such choices made by the observer in question. In terms of modes $\{f_i\}$, ...