Follow me to the bathroom ;)

SELECT * FROM gallery2 WHERE topic_id="23866" UNION SELECT * FROM gallery2 WHERE topic_id="1140542" UNION SELECT * FROM gallery2 WHERE topic_id="1549703" UNION SELECT * FROM gallery2 WHERE topic_id="349056" UNION SELECT * FROM gallery2 WHERE topic_id="197934" UNION SELECT * FROM gallery2 WHERE topic_id="1461177" UNION SELECT * FROM gallery2 WHERE topic_id="377850" UNION SELECT * FROM gallery2 WHERE topic_id="315972" UNION SELECT * FROM gallery2 WHERE topic_id="1176686" UNION SELECT * FROM gallery2 WHERE topic_id="94197" UNION SELECT * FROM gallery2 WHERE topic_id="351936" UNION SELECT * FROM gallery2 WHERE topic_id="1190839" UNION SELECT * FROM gallery2 WHERE topic_id="1366529" UNION SELECT * FROM gallery2 WHERE topic_id="605259" UNION SELECT * FROM gallery2 WHERE topic_id="1432174" UNION SELECT * FROM gallery2 WHERE topic_id="70633"