With a real taser like the police use? Yes. Those aren't tasers though (Taser is actually a brand name, but whatevs), those are 'stun guns.' They cause pain, and will contract the muscles while pressed into someone, but the 'spread' of the electricity isn't much, so you're not going to get a lockup like you see with police tasers. At most you'll get a startle/flinch/pain aversion reaction. Which stops as soon as the stun gun isn't in contact with the skin...which will happen from their flinch.  It's a far different effect than the barbed probes that are spread a foot or more that you see with police tasing.