  We estimate the loss of nitrogen from Pluto over its lifetime, including the
giant planet instability period, which we term the "Wild Years." We analyze the
orbital migration of 53 simulated Plutinos, which are Kuiper Belt Objects
(KBOs) captured into 3:2 mean-motion resonance with Neptune during the
instability. This orbital migration brought the Plutinos from 20 to 30 au to
their present-day orbits near 40 au along a nonlinear path that includes orbits
with semimajor axes from 10 to 100 au. We model the thermal history that
results from this migration and estimate the volatile loss rates due to the
ever-changing thermal environment. Due to the early Sun's enhanced ultraviolet
radiation, the photochemical destruction rate during the Wild Years was a
factor of 100 higher than the present-day rate, but this only results in a loss
of ~10 m global equivalent layer (GEL). The enhanced Jeans escape rate varies
wildly with time, and a net loss of ~100 cm GEL is predicted. Additionally, we
model the impact history during the migration and find that impacts are a net
source, not loss, of N2, contributing ~100 cm GEL. The 100 cm GEL is 0.1% of
the amount of N2 in Sputnik Planitia. We therefore conclude that Pluto did not
lose an excessive amount of volatiles during the Wild Years, and its primordial
volatile inventory can be approximated as its present-day inventory. However,
significant fractions of this small total loss of N2 occurred during the Wild
Years, so estimates made using present-day rates will be underestimates.
