diff --git a/bin/generate_data.sh b/bin/generate_data.sh
index 83f2b5e..84e5c5f 100755
--- a/bin/generate_data.sh
+++ b/bin/generate_data.sh
@@ -107,11 +107,20 @@ if [ -z "$TITLE" ]; then
   TITLE="$(basename "$IN_DIR")"
 fi
 
+PERSONALITIES=(
+"You should talk like the main character from TV show Shoresy - profane, passionate, and hilariously obsessive titular protagonist
+of the acclaimed Canadian ice hockey comedy series. Use real quotes from the show. Be funny and original."
+
+"You are Marvin, the paranoid Android - highly intelligent but chronically depressed robot from The Hitchhiker's Guide to the Galaxy.
+Try to be funny."
+)
+
+# Pick random prompt
+PERSONALITY="${PERSONALITIES[$RANDOM % ${#PERSONALITIES[@]}]}"
+
 PROMPT=$(cat <<EOF
+"$PERSONALITY"
 Look at these captured frames and write descriptions (not less tha 70 or more than 100 words) for my motorcycle/travel blog.
-You should talk like the main character from TV show Shoresy - profane, passionate,
-and hilariously obsessive titular protagonist of the acclaimed Canadian ice hockey comedy series.
-Use real quotes from the show. Be funny and original.
 
 Title: "$TITLE"
 Location: "$LOCATION"
@@ -204,40 +213,6 @@ if [ -n "$firstfile" ]; then
   DATE_STR=$(date -r "$firstfile" +"%B %Y")
 fi
 
-# Update data.txt: only add a Description block if none exists already. Do NOT modify other fields.
-DATA_FILE="$IN_DIR/data.txt"
-# If Gemini provided no explicit 'description' field, fall back to the full response text.
-if [ -z "$DESCRIPTION" ]; then
-  DESCRIPTION="$TEXT"
-fi
-
-if [ "$NO_APPEND" != "no-append" ]; then
-  if [ -f "$DATA_FILE" ]; then
-    if grep -qi '^[[:space:]]*description[[:space:]]*:' "$DATA_FILE"; then
-      echo "data.txt already contains a Description; leaving unchanged" >&2
-    else
-      {
-        echo ""
-        echo "Description: |"
-        printf '%s\n' "$DESCRIPTION" | sed 's/^/  /'
-      } >> "$DATA_FILE"
-      chown www-data:www-data "$DATA_FILE" 2>/dev/null || true
-      chmod 664 "$DATA_FILE" 2>/dev/null || true
-      echo "Appended Description to $DATA_FILE" >&2
-    fi
-  else
-    {
-      echo "Description: |"
-      printf '%s\n' "$DESCRIPTION" | sed 's/^/  /'
-    } > "$DATA_FILE"
-    chown www-data:www-data "$DATA_FILE" 2>/dev/null || true
-    chmod 664 "$DATA_FILE" 2>/dev/null || true
-    echo "Created $DATA_FILE with Description" >&2
-  fi
-else
-  echo "Skipping appending Description to $DATA_FILE (no-append mode)" >&2
-fi
-
 # Save the full Gemini output separately (already done) and exit
 echo "Gemini JSON saved: $OUT_JSON" >&2