Touching single line of AC Power and charge oscillation in body If a person touches a single line of AC(Only on the live line, and no where else. Say he/she is hanging on the power line using one hand) as shown in the attached image,  Do the ions in his/her body move to one side of his/her body in first half cycle  of AC(Like electrons getting pulled from plate of capacitor when positive terminal of a battery is connected to capacitor even though a capacitor does not complete a physical loop in the circuit) and pushed further away in the next half cycle? If this to and fro oscillation of charges takes place then doesn't that create an AC current in the persons body and the person get electrocuted even if he touch a single line of AC? 
Thanks in advance.

 A: The pictures in the post are more consistent with the induced charge, while, under the described test conditions, the charge will actually flow in and out of the body.
Regardless, the AC current ($120$V/$60$Hz) flowing through the body will be insignificant to be dangerous (has to be on the order of tens of milliamps) or even to be felt (has to be on the order of $0.5$mA).
If we assume the capacitance of the body to be $100$pF, the charge required to charge it to a peak voltage of $170$V $(Q=CU)$, will be about $16$nC, yielding the average current over a half period of about $2$uA - too small to be perceived.    
A: If the body is not in contact with anything connected to the other wire (that is, ground), nor close enough to it to form one capacitor plate, then the electrons will not do anything, just as happens if you connect one side of a capacitor to one terminal of a battery. 
In fact electrons react to electric field, not electric potential ; if the other wire and/or ground is very far, the electric field vanishes. That's why birds perched on overhead lines don't feel anything at all. On the other hand, just being close to the other wire may create a strong enough electric field to make electrons move as your picture shows for the case where the whole left edge of the picture is at ground potential)
