hi

 i used to go for flying alone and when i reach the field people start gather around me till the time i prepare for flying everybody surround me make me uncomfortable to fly the model

i am not concern about the people around me i want nobody get injured  or my airplane stay out of the range of people come to see me flying


even i fly with seniors here i find the same situation we fly outside the town and village kids and people start gather around us

the strange thing happen when  a person come in the range of  t line airplane it could hit that person
he want to see the airplane close view



what i do 

because i fly alone

i used to hand launch the airplane at the empty part of the field

second thing i do i climb the airplane to max height where i find myself comfortable to fly

third thing when i approach for landing i see the empty part of the field  i land the airplane there

i switch of the transmitter and run towards the airplane to secure it.

I hope you know this but if not, It's always suggested to turn the Rx off before turning the Tx off. You should also have a failsafe setup in the event that you turn the Tx off accidentally. Also, once you have the failsafe setup, follow the same procedure. A friend of mine burnt up his throttle servo (on a nitro car) since he turned the Tx off and the Rx went into failsafe.

I second about the fail safe , fail safe is an important piece of equipment if you are flying a nitro . Many programable radio's have the fail safe option but if your does not have that please get one , if you get out of the range or as the person above me said accidentally switch of your radio the fail safe will reset your throttle servo .
The setup of fail safe is easy as well it sits between the line between your throttle servo and receiver

Have a dedicated buddy or a local guy to manage bystanders. This is a must. Keep all of them in one place at the side. Being timid will not help. You have to exert some authority. Soon, someone among the bystanders will start policing others