Ringlingering

Ringling.
Lingering.
Ringlingering.*

Hanging around the circus after it closes.

Loitering.
Ringling.
Loiteringling.*

Seeing the performers let their guard down and be themselves.

Trapeze.
Easy-Going.
Trapeasy-Going.

Enjoying the absence of other patrons.

Circus.
Customers.
Circustomers.

Finding out if all the clowns carpool home in that tiny car.

Environmental.
Tailgating.
Environmentailgating.


* Fun circus trick: combine these two and see what happens...

Loiteringling.
Ringlingering.
Loiteringlingering.
Loitering. Lingering.

Apparently, the circus is all about lazing around.
Makes sense then why everyone would want to run away and join it.
You run, you join, you relax.**

Answer.
Circus.
Answircus.


** Just like Julius Caesar did.

Conquered.
Redefined.
Conqueredefined.

(Even looks like it could be Latin.)