Most recent was 3 mobiks fleeing an FPV, FPV struck the middle one. He flailed around on groud for a few seconds before tapping his temple several times before curling up so his comrade could push the AK to his temple and fire.
Other videos have shown injured mobiks who were hit by grenades or fully suppressed with no where to go popping a grenade and shoving it inside their vest to commit suicide. Usually UA drone operators conduct second strike on survivors as a mercy kill when there is no support to recover the casualty and too far away to capture, but seems a lot of Russians are going immediately to suicide or begging other soldiers to frag them, like they know there is zero chance of proper recovery or medical assistance to be found.