Finally, after 8 total uncatchable Poochyena, I've finally found a catchable one!
This is my 4th total phase on this route, the previous phases all being in Ruby/Sapphire and yielding two Electrike and an Oddish. In an attempt to avoid further Zigzagoons (currently have 3) I decided to continue these phases in Emerald, mainly because I already got a Plusle and Emeralds predominantly feature Minun.
My primary targets were Gulpin and Minun, though Poochyena is also cool since I've only ever found uncatchable ones. If I were to get a Gulpin, I would be able to static for Minun afterwards, so I'll continue hunting here in hopes of a Gulpin.
Because of the Lonely nature, I checked its IVs to see if I might be close to perfect attack. Nope. Its attack IV is between 0 and 8. Darn.
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